bcache: use sysfs_match_string() instead of __sysfs_match_string()

The arrays (of strings) that are passed to __sysfs_match_string() are
static, so use sysfs_match_string() which does an implicit ARRAY_SIZE()
over these arrays.

Functionally, this doesn't change anything.
The change is more cosmetic.

It only shrinks the static arrays by 1 byte each.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index bfb437f..760cf89 100644 (file)
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -21,28 +21,24 @@ static const char * const bch_cache_modes[] = {
        "writethrough",
        "writeback",
        "writearound",
-       "none",
-       NULL
+       "none"
 };
 
 /* Default is 0 ("auto") */
 static const char * const bch_stop_on_failure_modes[] = {
        "auto",
-       "always",
-       NULL
+       "always"
 };
 
 static const char * const cache_replacement_policies[] = {
        "lru",
        "fifo",
-       "random",
-       NULL
+       "random"
 };
 
 static const char * const error_actions[] = {
        "unregister",
-       "panic",
-       NULL
+       "panic"
 };
 
 write_attribute(attach);
@@ -333,7 +329,7 @@ STORE(__cached_dev)
                bch_cached_dev_run(dc);
 
        if (attr == &sysfs_cache_mode) {
-               v = __sysfs_match_string(bch_cache_modes, -1, buf);
+               v = sysfs_match_string(bch_cache_modes, buf);
                if (v < 0)
                        return v;
 
@@ -344,7 +340,7 @@ STORE(__cached_dev)
        }
 
        if (attr == &sysfs_stop_when_cache_set_failed) {
-               v = __sysfs_match_string(bch_stop_on_failure_modes, -1, buf);
+               v = sysfs_match_string(bch_stop_on_failure_modes, buf);
                if (v < 0)
                        return v;
 
@@ -799,7 +795,7 @@ STORE(__bch_cache_set)
                            0, UINT_MAX);
 
        if (attr == &sysfs_errors) {
-               v = __sysfs_match_string(error_actions, -1, buf);
+               v = sysfs_match_string(error_actions, buf);
                if (v < 0)
                        return v;
 
@@ -1063,7 +1059,7 @@ STORE(__bch_cache)
        }
 
        if (attr == &sysfs_cache_replacement_policy) {
-               v = __sysfs_match_string(cache_replacement_policies, -1, buf);
+               v = sysfs_match_string(cache_replacement_policies, buf);
                if (v < 0)
                        return v;