diff options
| author | Tony Battersby <tonyb@cybernetics.com> | 2023-01-27 00:51:16 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2023-05-06 20:33:36 +0300 |
| commit | 08cc96c894848bcd1d15a79b15c56a8bb4f07ff5 (patch) | |
| tree | d5f8e4c5e60b9c1a54ed537a4aa9f0ab91cf8fce /mm/dmapool.c | |
| parent | 67a540c60c39d052d9599aa9909023152200a707 (diff) | |
| download | linux-08cc96c894848bcd1d15a79b15c56a8bb4f07ff5.tar.xz | |
dmapool: use sysfs_emit() instead of scnprintf()
Use sysfs_emit instead of scnprintf, snprintf or sprintf.
Link: https://lkml.kernel.org/r/20230126215125.4069751-4-kbusch@meta.com
Fixes: 2d55c16c0c54 ("dmapool: create/destroy cleanup")
Signed-off-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/dmapool.c')
| -rw-r--r-- | mm/dmapool.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/mm/dmapool.c b/mm/dmapool.c index 559207e1c333..20616b760bb9 100644 --- a/mm/dmapool.c +++ b/mm/dmapool.c @@ -64,18 +64,11 @@ static DEFINE_MUTEX(pools_reg_lock); static ssize_t pools_show(struct device *dev, struct device_attribute *attr, char *buf) { - unsigned temp; - unsigned size; - char *next; + int size; struct dma_page *page; struct dma_pool *pool; - next = buf; - size = PAGE_SIZE; - - temp = scnprintf(next, size, "poolinfo - 0.1\n"); - size -= temp; - next += temp; + size = sysfs_emit(buf, "poolinfo - 0.1\n"); mutex_lock(&pools_lock); list_for_each_entry(pool, &dev->dma_pools, pools) { @@ -90,16 +83,14 @@ static ssize_t pools_show(struct device *dev, struct device_attribute *attr, cha spin_unlock_irq(&pool->lock); /* per-pool info, no real statistics yet */ - temp = scnprintf(next, size, "%-16s %4u %4zu %4zu %2u\n", - pool->name, blocks, - pages * (pool->allocation / pool->size), - pool->size, pages); - size -= temp; - next += temp; + size += sysfs_emit_at(buf, size, "%-16s %4u %4zu %4zu %2u\n", + pool->name, blocks, + pages * (pool->allocation / pool->size), + pool->size, pages); } mutex_unlock(&pools_lock); - return PAGE_SIZE - size; + return size; } static DEVICE_ATTR_RO(pools); |