[PATCH v2 -next] mm/dmapool: use DEVICE_ATTR_RO macro
From: YueHaibing <hidden>
Date: 2021-05-24 11:29:16
Also in:
lkml
Subsystem:
memory management, memory management - misc, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
Use DEVICE_ATTR_RO() helper instead of plain DEVICE_ATTR(),
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <redacted>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
v2: DEVICE_ATTR_RO -> DEVICE_ATTR_RO()
DEVICE_ATTR -> DEVICE_ATTR()
mm/dmapool.c | 5 ++---
1 file 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.
--
2.17.1