IB/hfi1: Convert kzalloc_node and kcalloc to use kcalloc_node

Kzalloc_node API doesn't check for overflows in size multiplication.
While kcalloc API check for overflows in size multiplication
but these implementations are not NUMA-aware.

This conversion allowed for correcting an allocation used in the hot
path to be on the local NUMA and ensure us overflow free multiplication
for the size of a memory allocation.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kamenee Arumugam <kamenee.arumugam@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index 8c4f040..33eba23 100644 (file)
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -172,7 +172,7 @@ int hfi1_create_kctxts(struct hfi1_devdata *dd)
        u16 i;
        int ret;
 
-       dd->rcd = kzalloc_node(dd->num_rcv_contexts * sizeof(*dd->rcd),
+       dd->rcd = kcalloc_node(dd->num_rcv_contexts, sizeof(*dd->rcd),
                               GFP_KERNEL, dd->node);
        if (!dd->rcd)
                return -ENOMEM;
@@ -439,15 +439,16 @@ int hfi1_create_ctxtdata(struct hfi1_pportdata *ppd, int numa,
                 * The resulting value will be rounded down to the closest
                 * multiple of dd->rcv_entries.group_size.
                 */
-               rcd->egrbufs.buffers = kzalloc_node(
-                       rcd->egrbufs.count * sizeof(*rcd->egrbufs.buffers),
-                       GFP_KERNEL, numa);
+               rcd->egrbufs.buffers =
+                       kcalloc_node(rcd->egrbufs.count,
+                                    sizeof(*rcd->egrbufs.buffers),
+                                    GFP_KERNEL, numa);
                if (!rcd->egrbufs.buffers)
                        goto bail;
-               rcd->egrbufs.rcvtids = kzalloc_node(
-                               rcd->egrbufs.count *
-                               sizeof(*rcd->egrbufs.rcvtids),
-                               GFP_KERNEL, numa);
+               rcd->egrbufs.rcvtids =
+                       kcalloc_node(rcd->egrbufs.count,
+                                    sizeof(*rcd->egrbufs.rcvtids),
+                                    GFP_KERNEL, numa);
                if (!rcd->egrbufs.rcvtids)
                        goto bail;
                rcd->egrbufs.size = eager_buffer_size;

diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
index 4c1198b..40dac4d 100644 (file)
--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -455,8 +455,8 @@ int init_send_contexts(struct hfi1_devdata *dd)
        dd->hw_to_sw = kmalloc_array(TXE_NUM_CONTEXTS, sizeof(u8),
                                        GFP_KERNEL);
        dd->send_contexts = kcalloc(dd->num_send_contexts,
-                                       sizeof(struct send_context_info),
-                                       GFP_KERNEL);
+                                   sizeof(struct send_context_info),
+                                   GFP_KERNEL);
        if (!dd->send_contexts || !dd->hw_to_sw) {
                kfree(dd->hw_to_sw);
                kfree(dd->send_contexts);
@@ -856,8 +856,9 @@ struct send_context *sc_alloc(struct hfi1_devdata *dd, int type,
                 * so head == tail can mean empty.
                 */
                sc->sr_size = sci->credits + 1;
-               sc->sr = kzalloc_node(sizeof(union pio_shadow_ring) *
-                               sc->sr_size, GFP_KERNEL, numa);
+               sc->sr = kcalloc_node(sc->sr_size,
+                                     sizeof(union pio_shadow_ring),
+                                     GFP_KERNEL, numa);
                if (!sc->sr) {
                        sc_free(sc);
                        return NULL;
@@ -1958,9 +1959,9 @@ int init_pervl_scs(struct hfi1_devdata *dd)
        hfi1_init_ctxt(dd->vld[15].sc);
        dd->vld[15].mtu = enum_to_mtu(OPA_MTU_2048);
 
-       dd->kernel_send_context = kzalloc_node(dd->num_send_contexts *
-                                       sizeof(struct send_context *),
-                                       GFP_KERNEL, dd->node);
+       dd->kernel_send_context = kcalloc_node(dd->num_send_contexts,
+                                              sizeof(struct send_context *),
+                                              GFP_KERNEL, dd->node);
        if (!dd->kernel_send_context)
                goto freesc15;
 

diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index 37424a8..d8ddbfd 100644 (file)
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -1389,7 +1389,8 @@ int sdma_init(struct hfi1_devdata *dd, u8 port)
                    num_engines, descq_cnt);
 
        /* alloc memory for array of send engines */
-       dd->per_sdma = kcalloc(num_engines, sizeof(*dd->per_sdma), GFP_KERNEL);
+       dd->per_sdma = kcalloc_node(num_engines, sizeof(*dd->per_sdma),
+                                   GFP_KERNEL, dd->node);
        if (!dd->per_sdma)
                return ret;