OSDN Git Service

uclinux-h8/linux.git
3 years agoselftests: mlxsw: Test vetoing of double sampling
Ido Schimmel [Mon, 29 Mar 2021 10:09:48 +0000 (13:09 +0300)]
selftests: mlxsw: Test vetoing of double sampling

Test that two sampling rules cannot be configured on the same port with
the same trigger.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum: Veto sampling if already enabled on port
Ido Schimmel [Mon, 29 Mar 2021 10:09:47 +0000 (13:09 +0300)]
mlxsw: spectrum: Veto sampling if already enabled on port

The per-port sampling triggers (i.e., ingress / egress) cannot be
enabled twice. Meaning, the below configuration will not result in
packets being sampled twice:

 # tc filter add dev swp1 ingress matchall skip_sw action sample rate 100 group 1
 # tc filter add dev swp1 ingress matchall skip_sw action sample rate 100 group 1

Therefore, reject such configurations.

Fixes: 90f53c53ec4a ("mlxsw: spectrum: Start using sampling triggers hash table")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: mlxsw: Test matchall failure with protocol match
Ido Schimmel [Mon, 29 Mar 2021 10:09:46 +0000 (13:09 +0300)]
selftests: mlxsw: Test matchall failure with protocol match

The driver can only offload matchall rules that do not match on a
protocol. Test that matchall rules that match on a protocol are vetoed.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_matchall: Perform priority checks earlier
Ido Schimmel [Mon, 29 Mar 2021 10:09:45 +0000 (13:09 +0300)]
mlxsw: spectrum_matchall: Perform priority checks earlier

Perform the priority check earlier in the function instead of repeating
it for every action. This fixes a bug that allowed matchall rules with
sample action to be added in front of flower rules on egress.

Fixes: 54d0e963f683 ("mlxsw: spectrum_matchall: Add support for egress sampling")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_matchall: Convert if statements to a switch statement
Ido Schimmel [Mon, 29 Mar 2021 10:09:44 +0000 (13:09 +0300)]
mlxsw: spectrum_matchall: Convert if statements to a switch statement

Previous patch moved the protocol check out of the action check, so
these if statements can now be converted to a switch statement. Perform
the conversion.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_matchall: Perform protocol check earlier
Ido Schimmel [Mon, 29 Mar 2021 10:09:43 +0000 (13:09 +0300)]
mlxsw: spectrum_matchall: Perform protocol check earlier

Perform the protocol check earlier in the function instead of repeating
it for every action. Example:

 # tc filter add dev swp1 ingress proto ip matchall skip_sw action sample group 1 rate 100
 Error: matchall rules only supported with 'all' protocol.
 We have an error talking to the kernel

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'marvell-cleanups'
David S. Miller [Mon, 29 Mar 2021 20:23:59 +0000 (13:23 -0700)]
Merge branch 'marvell-cleanups'

Weihang Li says:

====================
net: marvell: fix some coding style

Do some cleanups according to the coding style of kernel.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: Fix an alignment problem
Yangyang Li [Mon, 29 Mar 2021 08:01:12 +0000 (16:01 +0800)]
net: marvell: Fix an alignment problem

Use tab instead of space to align the code.

Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: Delete extra spaces
Yangyang Li [Mon, 29 Mar 2021 08:01:11 +0000 (16:01 +0800)]
net: marvell: Delete extra spaces

Just delete three extra spaces.

Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: Fix the trailing format of some block comments
Yangyang Li [Mon, 29 Mar 2021 08:01:10 +0000 (16:01 +0800)]
net: marvell: Fix the trailing format of some block comments

Use a trailing */ on a separate line for block comments.

Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: Delete duplicate word in comments
Yangyang Li [Mon, 29 Mar 2021 08:01:09 +0000 (16:01 +0800)]
net: marvell: Delete duplicate word in comments

Delete duplicate word in two comments.

Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'hns3-misc'
David S. Miller [Mon, 29 Mar 2021 20:21:01 +0000 (13:21 -0700)]
Merge branch 'hns3-misc'

Huazhong Tan says:

====================
net: hns3: misc updates for -next

This series include some updates for the HNS3 ethernet driver.

   flow director configuration").
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: add stats logging when skb padding fails
Yunsheng Lin [Mon, 29 Mar 2021 03:57:53 +0000 (11:57 +0800)]
net: hns3: add stats logging when skb padding fails

skb_put_padto() may fails because of memory failure, sw_err_cnt
is already used to log memory failure in hns3_skb_linearize(),
so use it to log the memory failure for skb_put_padto() too.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: expand the tc config command
Guojia Liao [Mon, 29 Mar 2021 03:57:52 +0000 (11:57 +0800)]
net: hns3: expand the tc config command

The device HNAE3_DEVICE_VERSION_V3 supports up to 1280 queues
and qsets for one function, so the bitwidth of tc_offset, meaning
the tqps index, needs to expand from 10 bits to 11 bits.

The device HNAE3_DEVICE_VERSION_V3 supports up to 512 queues on
one TC. The tc_size, meaning the exponent with base 2 of queues
supported on TC, which needs to expand from 3 bits to 4 bits.

Signed-off-by: Guojia Liao <liaoguojia@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: add tx send size handling for tso skb
Yunsheng Lin [Mon, 29 Mar 2021 03:57:51 +0000 (11:57 +0800)]
net: hns3: add tx send size handling for tso skb

The actual size on wire for tso skb should be (gso_segs - 1) *
hdr + skb->len instead of skb->len, which can be seen by user using
'ethtool -S ethX' cmd, and 'Byte Queue Limit' also use the send size
stat to do the queue limiting, so add send_bytes in the desc_cb to
record the actual send size for a skb. And send_bytes is only for tx
desc_cb and page_offset is only for rx desc, so reuse the same space
for both of them.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: add handling for xmit skb with recursive fraglist
Yunsheng Lin [Mon, 29 Mar 2021 03:57:50 +0000 (11:57 +0800)]
net: hns3: add handling for xmit skb with recursive fraglist

Currently hns3 driver only handle the xmit skb with one level of
fraglist skb, add handling for multi level by calling hns3_tx_bd_num()
recursively when calculating bd num and calling hns3_fill_skb_to_desc()
recursively when filling tx desc.

When the skb has a fraglist level of 24, the skb is simply dropped and
stats.max_recursion_level is added to record the error. Move the stat
handling from hns3_nic_net_xmit() to hns3_nic_maybe_stop_tx() in order
to handle different error stat and add the 'max_recursion_level' and
'hw_limitation' stat.

Note that the max recursive level as 24 is chose according to below:
commit 48a1df65334b ("skbuff: return -EMSGSIZE in skb_to_sgvec to
prevent overflow").

And that we are not able to find a testcase to verify the recursive
fraglist case, so Fixes tag is not provided.

Reported-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: optimize the process of queue reset
Yufeng Mo [Mon, 29 Mar 2021 03:57:49 +0000 (11:57 +0800)]
net: hns3: optimize the process of queue reset

Currently, the queue reset process needs to be performed one by
one, which is inefficient. However, the queue reset of the same
function is always performed at the same time. Therefore, according
to the UM, command HCLGE_OPC_CFG_RST_TRIGGER can be used to reset
all queues of the same function at a time, in order to optimize
the queue reset process.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: remove the rss_size limitation by vector num
Jian Shen [Mon, 29 Mar 2021 03:57:48 +0000 (11:57 +0800)]
net: hns3: remove the rss_size limitation by vector num

Currently, if user hasn't change channel number, the rss_size
is limited to be no more than the vector number, in order to
keep one vector only being mapped to one queue. But the queue
number of each tc can be different, and one vector also can
be mapped by multiple queues. So remove this limitation.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: remediate a potential overflow risk of bd_num_list
Guangbin Huang [Mon, 29 Mar 2021 03:57:47 +0000 (11:57 +0800)]
net: hns3: remediate a potential overflow risk of bd_num_list

The array size of bd_num_list is a fixed value, it may have potential
overflow risk when array size of hclge_dfx_bd_offset_list is greater
than that fixed value. So modify bd_num_list as a pointer and allocate
memory for it according to array size of hclge_dfx_bd_offset_list.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: fix use-after-free issue for hclge_add_fd_entry_common()
Jian Shen [Mon, 29 Mar 2021 03:57:46 +0000 (11:57 +0800)]
net: hns3: fix use-after-free issue for hclge_add_fd_entry_common()

When new rule state is TO_ADD or ACTIVE, and there is already a
rule with same location in the fd_rule_list, the new rule will
be freed after modifying the old rule. It may cause user-after-free
issue when access rule again in hclge_add_fd_entry_common().

Fixes: fc4243b8de8b ("net: hns3: refactor flow director configuration")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: fix missing rule state assignment
Jian Shen [Mon, 29 Mar 2021 03:57:45 +0000 (11:57 +0800)]
net: hns3: fix missing rule state assignment

Currently, when adding flow director rule, it missed to set
rule state. Which may cause the rule state in software is
unconsistent with hardware.

Fixes: fc4243b8de8b ("net: hns3: refactor flow director configuration")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mscc: ocelot: remove redundant dev_err call in vsc9959_mdio_bus_alloc()
Guobin Huang [Mon, 29 Mar 2021 01:54:05 +0000 (09:54 +0800)]
net: mscc: ocelot: remove redundant dev_err call in vsc9959_mdio_bus_alloc()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: remove redundant dev_err call in qcom_ethqos_probe()
Guobin Huang [Mon, 29 Mar 2021 01:49:32 +0000 (09:49 +0800)]
net: stmmac: remove redundant dev_err call in qcom_ethqos_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: axienet: Remove redundant dev_err call in axienet_probe()
Guobin Huang [Mon, 29 Mar 2021 01:45:13 +0000 (09:45 +0800)]
net: axienet: Remove redundant dev_err call in axienet_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mdio: Remove redundant dev_err call in mdio_mux_iproc_probe()
Guobin Huang [Mon, 29 Mar 2021 01:38:32 +0000 (09:38 +0800)]
net: mdio: Remove redundant dev_err call in mdio_mux_iproc_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agolan743x: remove redundant intializations of pointers adapter and phydev
Colin Ian King [Sun, 28 Mar 2021 21:46:47 +0000 (22:46 +0100)]
lan743x: remove redundant intializations of pointers adapter and phydev

The pointers adapter and phydev are being initialized with values that
are never read and are being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ipa-next'
David S. Miller [Mon, 29 Mar 2021 01:12:03 +0000 (18:12 -0700)]
Merge branch 'ipa-next'

Alex Elder says:

====================
net: ipa: a few last bits

This series incorporates a few last things that didn't fit neatly
with patches I've posted recently.

The first patch eliminates all remaining kernel-doc warnings.
There's still room for kernel-doc improvement, but at least what's
there will no longer produce warnings.

The next moves the definition of the value to store in the backward
compatibility register (when present) into platform data files.

The third removes two endpoint definitions that do not need to be
defined.

The next two switch the naming convention used for configuration
data files to be based on the IPA version rather than the specific
platform.  I was skeptical about this at first (i.e., I thought a
platform might have quirks separate from the IPA version).  But
I'm now convinced the IPA version is enough to define the details
of the hardware block.  If any exceptions to this are found, we can
treat those differently.  Note:  these two patches produce warnings
from checkpatch.pl about updating MAINTAINERS: these can be ignored.

The sixth removes unnecessary checks for alignment of DMA memory
allocations, based comments from David Laight.

And the last removes a symbol representing the size of a table
entry, using sizeof(__le64) in its place.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: kill IPA_TABLE_ENTRY_SIZE
Alex Elder [Sun, 28 Mar 2021 17:31:11 +0000 (12:31 -0500)]
net: ipa: kill IPA_TABLE_ENTRY_SIZE

Entries in an IPA route or filter table are 64-bit little-endian
addresses, each of which refers to a routing or filtering rule.

The format of these table slots are fixed, but IPA_TABLE_ENTRY_SIZE
is used to define their size.  This symbol doesn't really add value,
and I think it unnecessarily obscures what a table entry *is*.

So get rid of IPA_TABLE_ENTRY_SIZE, and just use sizeof(__le64) in
its place throughout the code.

Update the comments in "ipa_table.c" to provide a little better
explanation of these table slots.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: DMA addresses are nicely aligned
Alex Elder [Sun, 28 Mar 2021 17:31:10 +0000 (12:31 -0500)]
net: ipa: DMA addresses are nicely aligned

A recent patch avoided doing 64-bit modulo operations by checking
the alignment of some DMA allocations using only the lower 32 bits
of the address.

David Laight pointed out (after the fix was committed) that DMA
allocations might already satisfy the alignment requirements.  And
he was right.

Remove the alignment checks that occur after DMA allocation requests,
and update comments to explain why the constraint is satisfied.  The
only place IPA_TABLE_ALIGN was used was to check the alignment; it is
therefore no longer needed, so get rid of it.

Add comments where GSI_RING_ELEMENT_SIZE and the tre_count and
event_count channel data fields are defined to make explicit they
are required to be powers of 2.

Revise a comment in gsi_trans_pool_init_dma(), taking into account
that dma_alloc_coherent() guarantees its result is aligned to a page
size (or order thereof).

Don't bother printing an error if a DMA allocation fails.

Suggested-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: use version based configuration for SC7180
Alex Elder [Sun, 28 Mar 2021 17:31:09 +0000 (12:31 -0500)]
net: ipa: use version based configuration for SC7180

Rename the SC7180 configuration data file so that its name is
derived from its IPA version.

Update a few other references to the code that talk about the SC7180
rather than just IPA v4.2.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: switch to version based configuration
Alex Elder [Sun, 28 Mar 2021 17:31:08 +0000 (12:31 -0500)]
net: ipa: switch to version based configuration

Rename the SDM845 configuration data file so that its name is
derived from its IPA version.  I am not aware of any special IPA
behavior or handling that would be based on a specific SoC (as
opposed to a specific version of the IPA it contains).

Update a few other references to the code that talk about the SDM845
rather than just IPA v3.5.1.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: don't define endpoints unnecessarily
Alex Elder [Sun, 28 Mar 2021 17:31:07 +0000 (12:31 -0500)]
net: ipa: don't define endpoints unnecessarily

We don't typically need much information about modem endpoints.
Normally we need to specify information about modem endpoints in
configuration data in only two cases:
  - When a modem TX endpoint supports filtering
  - When another endpoint's configuration refers to it

For the first case, the AP initializes the filter table, and must
know how many endpoints (AP and modem) support filtering.  An
example of the second case is the AP->modem TX endpoint, which
defines the modem<-AP RX endpoint as its status endpoint.

There is one exception to this, and it's due to a hardware quirk.
For IPA v4.2 (only) there is a problem related to allocating GSI
channels.  And to work around this, the AP allocates *all* GSI
channels at startup time--including those used by the modem.

Get rid of the configuration information for two endpoints not
required for the SDM845.  SC7180 runs IPA v4.2, so we can't
eliminate any modem endpoint definitions there.

Two more minor changes:
  - Reorder the members defined for the ipa_endpoint_name enumerated
    type to match the order used in configuration data files when
    defining endpoints.
  - Add a new name, IPA_ENDPOINT_MODEM_DL_NLO_TX, which can be used
    for IPA v4.5+.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: store BCR register values in config data
Alex Elder [Sun, 28 Mar 2021 17:31:06 +0000 (12:31 -0500)]
net: ipa: store BCR register values in config data

The backward compatibility register value is a platform-specific
property that is not stored in the platform data.  Create a data
field where this can be represented, and get rid ipa_reg_bcr_val().

This register is not present starting with IPA v4.5.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: fix all kernel-doc warnings
Alex Elder [Sun, 28 Mar 2021 17:31:05 +0000 (12:31 -0500)]
net: ipa: fix all kernel-doc warnings

Fix all warnings produced when running:
  scripts/kernel-doc -none drivers/net/ipa/*.[ch]

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: moxa: remove redundant dev_err call in moxart_mac_probe()
Guobin Huang [Sat, 27 Mar 2021 10:37:54 +0000 (18:37 +0800)]
net: moxa: remove redundant dev_err call in moxart_mac_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: lantiq: Remove redundant dev_err call in xrx200_probe()
Guobin Huang [Sat, 27 Mar 2021 10:31:51 +0000 (18:31 +0800)]
net: lantiq: Remove redundant dev_err call in xrx200_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: hellcreek: Remove redundant dev_err call in hellcreek_probe()
Guobin Huang [Sat, 27 Mar 2021 10:07:18 +0000 (18:07 +0800)]
net: dsa: hellcreek: Remove redundant dev_err call in hellcreek_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomt76: mt7615: remove redundant dev_err call in mt7622_wmac_probe()
Guobin Huang [Sat, 27 Mar 2021 09:56:18 +0000 (17:56 +0800)]
mt76: mt7615: remove redundant dev_err call in mt7622_wmac_probe()

There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Guobin Huang <huangguobin4@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomt76: Convert to DEFINE_SHOW_ATTRIBUTE
Junlin Yang [Sat, 27 Mar 2021 09:56:17 +0000 (17:56 +0800)]
mt76: Convert to DEFINE_SHOW_ATTRIBUTE

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: fix missing unlock on error in stmmac_suspend()
Yang Yingliang [Sat, 27 Mar 2021 09:33:22 +0000 (17:33 +0800)]
net: stmmac: fix missing unlock on error in stmmac_suspend()

Add the missing unlock before return from stmmac_suspend()
in the error handling case.

Fixes: 5ec55823438e ("net: stmmac: add clocks management for gmac driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agosit: use min
kernel test robot [Sat, 27 Mar 2021 09:29:32 +0000 (10:29 +0100)]
sit: use min

Opportunity for min()

Generated by: scripts/coccinelle/misc/minmax.cocci

CC: Denis Efremov <efremov@linux.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoNFC: digital: Correct function name in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:56 +0000 (16:15 +0800)]
NFC: digital: Correct function name in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/nfc/digital_core.c:473: warning: expecting prototype for start_poll operation(). Prototype was for digital_start_poll() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoip6_tunnel:: Correct function name parse_tvl_tnl_enc_lim() in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:55 +0000 (16:15 +0800)]
ip6_tunnel:: Correct function name parse_tvl_tnl_enc_lim() in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/ipv6/ip6_tunnel.c:401: warning: expecting prototype for parse_tvl_tnl_enc_lim(). Prototype was for ip6_tnl_parse_tlv_enc_lim() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: 9p: Correct function names in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:54 +0000 (16:15 +0800)]
net: 9p: Correct function names in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/9p/client.c:133: warning: expecting prototype for parse_options(). Prototype was for parse_opts() instead
 net/9p/client.c:269: warning: expecting prototype for p9_req_alloc(). Prototype was for p9_tag_alloc() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years ago9p/trans_fd: Correct function name p9_mux_destroy() in the kerneldoc
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:53 +0000 (16:15 +0800)]
9p/trans_fd: Correct function name p9_mux_destroy() in the kerneldoc

Fix the following W=1 kernel build warning(s):

 net/9p/trans_fd.c:881: warning: expecting prototype for p9_mux_destroy(). Prototype was for p9_conn_destroy() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: 9p: Correct function name errstr2errno() in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:52 +0000 (16:15 +0800)]
net: 9p: Correct function name errstr2errno() in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/9p/error.c:207: warning: expecting prototype for errstr2errno(). Prototype was for p9_errstr2errno() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: core: Correct function name netevent_unregister_notifier() in the kerneldoc
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:51 +0000 (16:15 +0800)]
net: core: Correct function name netevent_unregister_notifier() in the kerneldoc

Fix the following W=1 kernel build warning(s):

 net/core/netevent.c:45: warning: expecting prototype for netevent_unregister_notifier(). Prototype was for unregister_netevent_notifier() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: core: Correct function name dev_uc_flush() in the kerneldoc
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:50 +0000 (16:15 +0800)]
net: core: Correct function name dev_uc_flush() in the kerneldoc

Fix the following W=1 kernel build warning(s):

 net/core/dev_addr_lists.c:732: warning: expecting prototype for dev_uc_flush(). Prototype was for dev_uc_init() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonetlabel: Correct function name netlbl_mgmt_add() in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:49 +0000 (16:15 +0800)]
netlabel: Correct function name netlbl_mgmt_add() in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/netlabel/netlabel_mgmt.c:78: warning: expecting prototype for netlbl_mgmt_add(). Prototype was for netlbl_mgmt_add_common() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agol3mdev: Correct function names in the kerneldoc comments
Xiongfeng Wang [Sat, 27 Mar 2021 08:15:48 +0000 (16:15 +0800)]
l3mdev: Correct function names in the kerneldoc comments

Fix the following W=1 kernel build warning(s):

 net/l3mdev/l3mdev.c:111: warning: expecting prototype for l3mdev_master_ifindex(). Prototype was for l3mdev_master_ifindex_rcu() instead
 net/l3mdev/l3mdev.c:145: warning: expecting prototype for l3mdev_master_upper_ifindex_by_index(). Prototype was for l3mdev_master_upper_ifindex_by_index_rcu() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mt7530: clean up core and TRGMII clock setup
Ilya Lipnitskiy [Sat, 27 Mar 2021 06:07:52 +0000 (23:07 -0700)]
net: dsa: mt7530: clean up core and TRGMII clock setup

Three minor changes:

- When disabling PLL, there is no need to call core_write_mmd_indirect
  directly, use the core_write wrapper instead like the rest of the code
  in the function does. This change helps with consistency and
  readability. Move the comment to the definition of
  core_read_mmd_indirect where it belongs.

- Disable both core and TRGMII Tx clocks prior to reconfiguring.
  Previously, only the core clock was disabled, but not TRGMII Tx clock.
  So disable both, then configure them, then re-enable both, for
  consistency.

- The core clock enable bit (REG_GSWCK_EN) is written redundantly three
  times. Simplify the code and only write the register only once at the
  end of clock reconfiguration to enable both core and TRGMII Tx clocks.

Tested on Ubiquiti ER-X running the GMAC0 and MT7530 in TRGMII mode.

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hns3: no return statement in hclge_clear_arfs_rules
Liu Jian [Sat, 27 Mar 2021 04:33:39 +0000 (12:33 +0800)]
net: hns3: no return statement in hclge_clear_arfs_rules

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c: In function 'hclge_clear_arfs_rules':
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:7173:1: error: no return statement in function returning non-void [-Werror=return-type]
 7173 | }
      | ^
cc1: some warnings being treated as errors
make[6]: *** [scripts/Makefile.build:273: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.o] Error 1
make[5]: *** [scripts/Makefile.build:534: drivers/net/ethernet/hisilicon/hns3/hns3pf] Error 2
make[4]: *** [scripts/Makefile.build:534: drivers/net/ethernet/hisilicon/hns3] Error 2
make[4]: *** Waiting for unfinished jobs....
make[3]: *** [scripts/Makefile.build:534: drivers/net/ethernet/hisilicon] Error 2
make[2]: *** [scripts/Makefile.build:534: drivers/net/ethernet] Error 2
make[1]: *** [scripts/Makefile.build:534: drivers/net] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1980: drivers] Error 2

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonexthop: Rename artifacts related to legacy multipath nexthop groups
Petr Machata [Fri, 26 Mar 2021 13:20:22 +0000 (14:20 +0100)]
nexthop: Rename artifacts related to legacy multipath nexthop groups

After resilient next-hop groups have been added recently, there are two
types of multipath next-hop groups: the legacy "mpath", and the new
"resilient". Calling the legacy next-hop group type "mpath" is unfortunate,
because that describes the fact that a packet could be forwarded in one of
several paths, which is also true for the resilient next-hop groups.

Therefore, to make the naming clearer, rename various artifacts to reflect
the assumptions made. Therefore as of this patch:

- The flag for multipath groups is nh_grp_entry::is_multipath. This
  includes the legacy and resilient groups, as well as any future group
  types that behave as multipath groups.
  Functions that assume this have "mpath" in the name.

- The flag for legacy multipath groups is nh_grp_entry::hash_threshold.
  Functions that assume this have "hthr" in the name.

- The flag for resilient groups is nh_grp_entry::resilient.
  Functions that assume this have "res" in the name.

Besides the above, struct nh_grp_entry::mpath was renamed to ::hthr as
well.

UAPI artifacts were obviously left intact.

Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: vsock: Fix a typo
Lu Wei [Sat, 27 Mar 2021 02:27:24 +0000 (10:27 +0800)]
net: vsock: Fix a typo

Modify "occured" to "occurred" in net/vmw_vsock/af_vsock.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: sctp: Fix some typos
Lu Wei [Sat, 27 Mar 2021 02:27:23 +0000 (10:27 +0800)]
net: sctp: Fix some typos

Modify "unkown" to "unknown" in net/sctp/sm_make_chunk.c and
Modify "orginal" to "original" in net/sctp/socket.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: rds: Fix a typo
Lu Wei [Sat, 27 Mar 2021 02:27:22 +0000 (10:27 +0800)]
net: rds: Fix a typo

Modify "beween" to "between" in net/rds/send.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodrivers: net: smc91x: remove redundant initialization of pointer gpio
Colin Ian King [Fri, 26 Mar 2021 19:28:47 +0000 (19:28 +0000)]
drivers: net: smc91x: remove redundant initialization of pointer gpio

The pointer gpio is being initialized with a value that is
never read and it is being updated later with a new value. The
initialization is redundant and can be removed.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'selftests-packets-per-second'
David S. Miller [Mon, 29 Mar 2021 00:48:28 +0000 (17:48 -0700)]
Merge branch 'selftests-packets-per-second'

Simon Horman says:

====================
selftest: add tests for packet per second

Add self tests for the recently added packet per second rate limiting
feature of the TC policer action[1].

The forwarding selftest (patch 2/2) depends on iproute2 support
for packet per second rate limiting, which has been posted separately[2]

[1] [PATCH v3 net-next 0/3] net/sched: act_police: add support for packet-per-second policing
    https://lore.kernel.org/netdev/20210312140831.23346-1-simon.horman@netronome.com/

[2] [PATCH iproute2-next] police: add support for packet-per-second rate limiting
    https://lore.kernel.org/netdev/20210326125018.32091-1-simon.horman@netronome.com/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: forwarding: Add tc-police tests for packets per second
Baowen Zheng [Fri, 26 Mar 2021 13:09:38 +0000 (14:09 +0100)]
selftests: forwarding: Add tc-police tests for packets per second

Test tc-police action for packets per second.
The test is mainly in scenarios Rx policing and Tx policing.
The test passes with veth pairs ports.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: tc-testing: add action police selftest for packets per second
Baowen Zheng [Fri, 26 Mar 2021 13:09:37 +0000 (14:09 +0100)]
selftests: tc-testing: add action police selftest for packets per second

Add selftest cases in action police for packets per second.
These tests depend on corresponding iproute2 command support.

Signed-off-by: Baowen Zheng <baowen.zheng@corigine.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoxfrm_user.c: Added a punctuation
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:54 +0000 (04:42 +0530)]
xfrm_user.c: Added a punctuation

s/wouldnt/wouldn\'t/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoxfrm_policy.c : Mundane typo fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:53 +0000 (04:42 +0530)]
xfrm_policy.c : Mundane typo fix

s/sucessful/successful/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agosm_statefuns.c: Mundane spello fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:52 +0000 (04:42 +0530)]
sm_statefuns.c: Mundane spello fixes

s/simulataneous/simultaneous/    ....in three dirrent places.
s/tempory/temporary/
s/interpeter/interpreter/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoreg.c: Fix a spello
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:51 +0000 (04:42 +0530)]
reg.c: Fix a spello

s/ingoring/ignoring/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonode.c: A typo fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:50 +0000 (04:42 +0530)]
node.c: A typo fix

s/synching/syncing/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonetfilter: nf_conntrack_acct.c: A typo fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:49 +0000 (04:42 +0530)]
netfilter: nf_conntrack_acct.c: A typo fix

s/Accouting/Accounting/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonetfilter: ipvs: A spello fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:48 +0000 (04:42 +0530)]
netfilter: ipvs: A spello fix

s/registerd/registered/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoncsi: internal.h: Fix a spello
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:47 +0000 (04:42 +0530)]
ncsi: internal.h: Fix a spello

s/Firware/Firmware/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: subflow.c: Fix a typo
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:46 +0000 (04:42 +0530)]
mptcp: subflow.c: Fix a typo

s/concerened/concerned/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomac80211: cfg.c: A typo fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:45 +0000 (04:42 +0530)]
mac80211: cfg.c: A typo fix

s/assocaited/associated/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agollc: llc_core.c: COuple of typo fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:44 +0000 (04:42 +0530)]
llc: llc_core.c: COuple of typo fixes

s/searchs/searches/   ....two different places.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agokcm: kcmsock.c: Couple of typo fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:43 +0000 (04:42 +0530)]
kcm: kcmsock.c: Couple of typo fixes

s/synchonization/synchronization/
s/aready/already/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoiucv: af_iucv.c: Couple of typo fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:42 +0000 (04:42 +0530)]
iucv: af_iucv.c: Couple of typo fixes

s/unitialized/uninitialized/
s/notifcations/notifications/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoipv6: route.c: A spello fix
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:41 +0000 (04:42 +0530)]
ipv6: route.c: A spello fix

s/notfication/notification/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoipv6: addrconf.c: Fix a typo
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:40 +0000 (04:42 +0530)]
ipv6: addrconf.c: Fix a typo

s/Identifers/Identifiers/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoipv4: tcp_lp.c: Couple of typo fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:39 +0000 (04:42 +0530)]
ipv4: tcp_lp.c: Couple of typo fixes

s/resrved/reserved/
s/within/within/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoipv4: ip_output.c: Couple of typo fixes
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:38 +0000 (04:42 +0530)]
ipv4: ip_output.c: Couple of typo fixes

s/readibility/readability/
s/insufficent/insufficient/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agobearer.h: Spellos fixed
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:37 +0000 (04:42 +0530)]
bearer.h: Spellos fixed

s/initalized/initialized/ ...three different places

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoaf_x25.c: Fix a spello
Bhaskar Chowdhury [Fri, 26 Mar 2021 23:12:36 +0000 (04:42 +0530)]
af_x25.c: Fix a spello

s/facilties/facilities/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agofarsync: use DEFINE_SPINLOCK() for spinlock
Liu Jian [Fri, 26 Mar 2021 12:31:38 +0000 (20:31 +0800)]
farsync: use DEFINE_SPINLOCK() for spinlock

spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Liu Jian <liujian56@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'llc-kdoc'
David S. Miller [Fri, 26 Mar 2021 22:24:14 +0000 (15:24 -0700)]
Merge branch 'llc-kdoc'

Yang Yingliang says:

====================
net: llc: Correct some function names in header

Fix some make W=1 kernel build warnings in net/llc/
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: llc: Correct function name llc_pdu_set_pf_bit() in header
Yang Yingliang [Fri, 26 Mar 2021 10:13:50 +0000 (18:13 +0800)]
net: llc: Correct function name llc_pdu_set_pf_bit() in header

Fix the following make W=1 kernel build warning:

 net/llc/llc_pdu.c:36: warning: expecting prototype for pdu_set_pf_bit(). Prototype was for llc_pdu_set_pf_bit() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: llc: Correct function name llc_sap_action_unitdata_ind() in header
Yang Yingliang [Fri, 26 Mar 2021 10:13:49 +0000 (18:13 +0800)]
net: llc: Correct function name llc_sap_action_unitdata_ind() in header

Fix the following make W=1 kernel build warning:

  net/llc/llc_s_ac.c:38: warning: expecting prototype for llc_sap_action_unit_data_ind(). Prototype was for llc_sap_action_unitdata_ind() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: llc: Correct some function names in header
Yang Yingliang [Fri, 26 Mar 2021 10:13:48 +0000 (18:13 +0800)]
net: llc: Correct some function names in header

Fix the following make W=1 kernel build warning:

 net/llc/llc_c_ev.c:622: warning: expecting prototype for conn_ev_qlfy_last_frame_eq_1(). Prototype was for llc_conn_ev_qlfy_last_frame_eq_1() instead
 net/llc/llc_c_ev.c:636: warning: expecting prototype for conn_ev_qlfy_last_frame_eq_0(). Prototype was for llc_conn_ev_qlfy_last_frame_eq_0() instead

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agotipc: fix kernel-doc warnings
Hoang Le [Fri, 26 Mar 2021 09:14:14 +0000 (16:14 +0700)]
tipc: fix kernel-doc warnings

Fix kernel-doc warning introduced in
commit b83e214b2e04 ("tipc: add extack messages for bearer/media failure"):

net/tipc/bearer.c:248: warning: Function parameter or member 'extack' not described in 'tipc_enable_bearer'

Fixes: b83e214b2e04 ("tipc: add extack messages for bearer/media failure")
Signed-off-by: Hoang Le <hoang.h.le@dektech.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: Fix kernel panic due to NULL pointer dereference of fpe_cfg
Mohammad Athari Bin Ismail [Fri, 26 Mar 2021 09:10:46 +0000 (17:10 +0800)]
net: stmmac: Fix kernel panic due to NULL pointer dereference of fpe_cfg

In this patch, "net: stmmac: support FPE link partner hand-shaking
procedure", priv->plat->fpe_cfg wouldn`t be "devm_kzalloc"ed if
dma_cap->frpsel is 0 (Flexible Rx Parser is not supported in SoC) in
tc_init(). So, fpe_cfg will be remain as NULL and accessing it will cause
kernel panic.

To fix this, move the "devm_kzalloc"ing of priv->plat->fpe_cfg before
dma_cap->frpsel checking in tc_init(). Additionally, checking of
priv->dma_cap.fpesel is added before calling stmmac_fpe_link_state_handle()
as only FPE supported SoC is allowed to call the function.

Below is the kernel panic dump reported by Marek Szyprowski
<m.szyprowski@samsung.com>:

meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=35)
meson8b-dwmac ff3f0000.ethernet eth0: No Safety Features support found
meson8b-dwmac ff3f0000.ethernet eth0: PTP not supported by HW
meson8b-dwmac ff3f0000.ethernet eth0: configuring for phy/rgmii link mode
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000001
Mem abort info:
...
user pgtable: 4k pages, 48-bit VAs, pgdp=00000000044eb000
[0000000000000001] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in: dw_hdmi_i2s_audio dw_hdmi_cec meson_gxl realtek meson_gxbb_wdt snd_soc_meson_axg_sound_card dwmac_generic axg_audio meson_dw_hdmi crct10dif_ce snd_soc_meson_card_utils snd_soc_meson_axg_tdmout panfrost rc_odroid gpu_sched reset_meson_audio_arb meson_ir snd_soc_meson_g12a_tohdmitx snd_soc_meson_axg_frddr sclk_div clk_phase snd_soc_meson_codec_glue dwmac_meson8b snd_soc_meson_axg_fifo stmmac_platform meson_rng meson_drm stmmac rtc_meson_vrtc rng_core meson_canvas pwm_meson dw_hdmi mdio_mux_meson_g12a pcs_xpcs snd_soc_meson_axg_tdm_interface snd_soc_meson_axg_tdm_formatter nvmem_meson_efuse display_connector
CPU: 1 PID: 7 Comm: kworker/u8:0 Not tainted 5.12.0-rc4-next-20210325+
Hardware name: Hardkernel ODROID-C4 (DT)
Workqueue: events_power_efficient phylink_resolve
pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
pc : stmmac_mac_link_up+0x14c/0x348 [stmmac]
lr : stmmac_mac_link_up+0x284/0x348 [stmmac] ...
Call trace:
 stmmac_mac_link_up+0x14c/0x348 [stmmac]
 phylink_resolve+0x104/0x420
 process_one_work+0x2a8/0x718
 worker_thread+0x48/0x460
 kthread+0x134/0x160
 ret_from_fork+0x10/0x18
Code: b971ba60 350007c0 f958c260 f9402000 (39400401)
---[ end trace 0c9deb6c510228aa ]---

Fixes: 5a5586112b92 ("net: stmmac: support FPE link partner hand-shaking
procedure")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: remove duplicated include
Xu Jia [Fri, 26 Mar 2021 02:40:46 +0000 (10:40 +0800)]
net: ethernet: remove duplicated include

Remove duplicated include from mtk_ppe_offload.c.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xu Jia <xujia39@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'axienet-clock-additions'
David S. Miller [Fri, 26 Mar 2021 22:17:17 +0000 (15:17 -0700)]
Merge branch 'axienet-clock-additions'

Robert Hancock says:

====================
axienet clock additions

Add support to the axienet driver for controlling all of the clocks that
the logic core may utilize.

Changed since v3:
-Added Acked-by to patch 1
-Now applies to net-next tree after earlier patches merged in - code
unchanged from v3

Changed since v2:
-Additional clock description clarification

Changed since v1:
-Clarified clock usages in documentation and code comments
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: axienet: Enable more clocks
Robert Hancock [Fri, 26 Mar 2021 00:04:38 +0000 (18:04 -0600)]
net: axienet: Enable more clocks

This driver was only enabling the first clock on the device, regardless
of its name. However, this controller logic can have multiple clocks
which should all be enabled. Add support for enabling additional clocks.
The clock names used are matching those used in the Xilinx version of this
driver as well as the Xilinx device tree generator, except for mgt_clk
which is not present there.

For backward compatibility, if no named clocks are present, the first
clock present is used for determining the MDIO bus clock divider.

Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: xilinx_axienet: Document additional clocks
Robert Hancock [Fri, 26 Mar 2021 00:04:37 +0000 (18:04 -0600)]
dt-bindings: net: xilinx_axienet: Document additional clocks

Update DT bindings to describe all of the clocks that the axienet
driver will now be able to make use of.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robert Hancock <robert.hancock@calian.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mld-sleepable'
David S. Miller [Fri, 26 Mar 2021 22:14:57 +0000 (15:14 -0700)]
Merge branch 'mld-sleepable'

Taehee Yoo says:

====================
mld: change context from atomic to sleepable

This patchset changes the context of MLD module.
Before this patchset, MLD functions are atomic context so it couldn't use
sleepable functions and flags.

There are several reasons why MLD functions are under atomic context.
1. It uses timer API.
Timer expiration functions are executed in the atomic context.
2. atomic locks
MLD functions use rwlock and spinlock to protect their own resources.

So, in order to switch context, this patchset converts resources to use
RCU and removes atomic locks and timer API.

1. The first patch convert from the timer API to delayed work.
Timer API is used for delaying some works.
MLD protocol has a delay mechanism, which is used for replying to a query.
If a listener receives a query from a router, it should send a response
after some delay. But because of timer expire function is executed in
the atomic context, this patch convert from timer API to the delayed work.

2. The fourth patch deletes inet6_dev->mc_lock.
The mc_lock has protected inet6_dev->mc_tomb pointer.
But this pointer is already protected by RTNL and it isn't be used by
datapath. So, it isn't be needed and because of this, many atomic context
critical sections are deleted.

3. The fifth patch convert ip6_sf_socklist to RCU.
ip6_sf_socklist has been protected by ipv6_mc_socklist->sflock(rwlock).
But this is already protected by RTNL So if it is converted to use RCU
in order to be used in the datapath, the sflock is no more needed.
So, its control path context can be switched to sleepable.

4. The sixth patch convert ip6_sf_list to RCU.
The reason for this patch is the same as the previous patch.

5. The seventh patch convert ifmcaddr6 to RCU.
The reason for this patch is the same as the previous patch.

6. Add new workqueues for processing query/report event.
By this patch, query and report events are processed by workqueue
So context is sleepable, not atomic.
While this logic, it acquires RTNL.

7. Add new mc_lock.
The purpose of this lock is to protect per-interface mld data.
Per-interface mld data is usually used by query/report event handler.
So, query/report event workers need only this lock instead of RTNL.
Therefore, it could reduce bottleneck.

Changelog:
v2 -> v3:
1. Do not use msecs_to_jiffies().
(by Cong Wang)
2. Do not add unnecessary rtnl_lock() and rtnl_unlock().
(by Cong Wang)
3. Fix sparse warnings because of rcu annotation.
(by kernel test robot)
   - Remove some rcu_assign_pointer(), which was used for non-rcu pointer.
   - Add union for rcu pointer.
   - Use rcu API in mld_clear_zeros().
   - Remove remained rcu_read_unlock().
   - Use rcu API for tomb resources.
4. withdraw prevopus 2nd and 3rd patch.
   - "separate two flags from ifmcaddr6->mca_flags"
   - "add a new delayed_work, mc_delrec_work"
5. Add 6th and 7th patch.

v1 -> v2:
1. Withdraw unnecessary refactoring patches.
(by Cong Wang, Eric Dumazet, David Ahern)
    a) convert from array to list.
    b) function rename.
2. Separate big one patch into small several patches.
3. Do not rename 'ifmcaddr6->mca_lock'.
In the v1 patch, this variable was changed to 'ifmcaddr6->mca_work_lock'.
But this is actually not needed.
4. Do not use atomic_t for 'ifmcaddr6->mca_sfcount' and
'ipv6_mc_socklist'->sf_count'.
5. Do not add mld_check_leave_group() function.
6. Do not add ip6_mc_del_src_bulk() function.
7. Do not add ip6_mc_add_src_bulk() function.
8. Do not use rcu_read_lock() in the qeth_l3_add_mcast_rtnl().
(by Julian Wiedmann)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: add mc_lock for protecting per-interface mld data
Taehee Yoo [Thu, 25 Mar 2021 16:16:57 +0000 (16:16 +0000)]
mld: add mc_lock for protecting per-interface mld data

The purpose of this lock is to avoid a bottleneck in the query/report
event handler logic.

By previous patches, almost all mld data is protected by RTNL.
So, the query and report event handler, which is data path logic
acquires RTNL too. Therefore if a lot of query and report events
are received, it uses RTNL for a long time.
So it makes the control-plane bottleneck because of using RTNL.
In order to avoid this bottleneck, mc_lock is added.

mc_lock protect only per-interface mld data and per-interface mld
data is used in the query/report event handler logic.
So, no longer rtnl_lock is needed in the query/report event handler logic.
Therefore bottleneck will be disappeared by mc_lock.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: add new workqueues for process mld events
Taehee Yoo [Thu, 25 Mar 2021 16:16:56 +0000 (16:16 +0000)]
mld: add new workqueues for process mld events

When query/report packets are received, mld module processes them.
But they are processed under BH context so it couldn't use sleepable
functions. So, in order to switch context, the two workqueues are
added which processes query and report event.

In the struct inet6_dev, mc_{query | report}_queue are added so it
is per-interface queue.
And mc_{query | report}_work are workqueue structure.

When the query or report event is received, skb is queued to proper
queue and worker function is scheduled immediately.
Workqueues and queues are protected by spinlock, which is
mc_{query | report}_lock, and worker functions are protected by RTNL.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: convert ifmcaddr6 to RCU
Taehee Yoo [Thu, 25 Mar 2021 16:16:55 +0000 (16:16 +0000)]
mld: convert ifmcaddr6 to RCU

The ifmcaddr6 has been protected by inet6_dev->lock(rwlock) so that
the critical section is atomic context. In order to switch this context,
changing locking is needed. The ifmcaddr6 actually already protected by
RTNL So if it's converted to use RCU, its control path context can be
switched to sleepable.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: convert ip6_sf_list to RCU
Taehee Yoo [Thu, 25 Mar 2021 16:16:54 +0000 (16:16 +0000)]
mld: convert ip6_sf_list to RCU

The ip6_sf_list has been protected by mca_lock(spin_lock) so that the
critical section is atomic context. In order to switch this context,
changing locking is needed. The ip6_sf_list actually already protected
by RTNL So if it's converted to use RCU, its control path context can
be switched to sleepable.
But It doesn't remove mca_lock yet because ifmcaddr6 isn't converted
to RCU yet. So, It's not fully converted to the sleepable context.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: convert ipv6_mc_socklist->sflist to RCU
Taehee Yoo [Thu, 25 Mar 2021 16:16:53 +0000 (16:16 +0000)]
mld: convert ipv6_mc_socklist->sflist to RCU

The sflist has been protected by rwlock so that the critical section
is atomic context.
In order to switch this context, changing locking is needed.
The sflist actually already protected by RTNL So if it's converted
to use RCU, its control path context can be switched to sleepable.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: get rid of inet6_dev->mc_lock
Taehee Yoo [Thu, 25 Mar 2021 16:16:52 +0000 (16:16 +0000)]
mld: get rid of inet6_dev->mc_lock

The purpose of mc_lock is to protect inet6_dev->mc_tomb.
But mc_tomb is already protected by RTNL and all functions,
which manipulate mc_tomb are called under RTNL.
So, mc_lock is not needed.
Furthermore, it is spinlock so the critical section is atomic.
In order to reduce atomic context, it should be removed.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomld: convert from timer to delayed work
Taehee Yoo [Thu, 25 Mar 2021 16:16:51 +0000 (16:16 +0000)]
mld: convert from timer to delayed work

mcast.c has several timers for delaying works.
Timer's expire handler is working under atomic context so it can't use
sleepable things such as GFP_KERNEL, mutex, etc.
In order to use sleepable APIs, it converts from timers to delayed work.
But there are some critical sections, which is used by both process
and BH context. So that it still uses spin_lock_bh() and rwlock.

Suggested-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'ethtool-kdoc-touchups'
David S. Miller [Fri, 26 Mar 2021 22:09:45 +0000 (15:09 -0700)]
Merge branch 'ethtool-kdoc-touchups'

Jakub Kicinski says:

====================
ethtool: fec: ioctl kdoc touch ups

A few touch ups from v1 review.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoethtool: document the enum values not defines
Jakub Kicinski [Fri, 26 Mar 2021 20:22:23 +0000 (13:22 -0700)]
ethtool: document the enum values not defines

kdoc does not have good support for documenting defines,
and we can't abuse the enum documentation because it
generates warnings.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>