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| author |   YueHaibing <yuehaibing@huawei.com> | 2021-06-28 19:40:05 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-29 10:53:52 -0700 |
| commit | e8df2c703d5d1a99cfc45124bfa6f5e1982e0166 (patch) | |
| tree | cc3818c3ec29e0dd64d86cdb6f357a639d7952c0 /mm | |
| parent | h8300: remove unused variable (diff) | |
| download | linux-dev-e8df2c703d5d1a99cfc45124bfa6f5e1982e0166.tar.xz linux-dev-e8df2c703d5d1a99cfc45124bfa6f5e1982e0166.zip | |
mm/dmapool: use DEVICE_ATTR_RO macro
Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(), which makes
the code a bit shorter and easier to read.
Link: https://lkml.kernel.org/r/20210524112852.34716-1-yuehaibing@huawei.com
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/dmapool.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/dmapool.c b/mm/dmapool.c index 16483f86360e..64b537b3ccb0 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -62,8 +62,7 @@ struct dma_page { /* cacheable header for 'allocation' bytes */ static DEFINE_MUTEX(pools_lock); static DEFINE_MUTEX(pools_reg_lock); -static ssize_t -show_pools(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t pools_show(struct device *dev, struct device_attribute *attr, char *buf) { unsigned temp; unsigned size; @@ -103,7 +102,7 @@ show_pools(struct device *dev, struct device_attribute *attr, char *buf) return PAGE_SIZE - size; } -static DEVICE_ATTR(pools, 0444, show_pools, NULL); +static DEVICE_ATTR_RO(pools); /** * dma_pool_create - Creates a pool of consistent memory blocks, for dma. |