From: Tom Rix trix@redhat.com

mainline inclusion from mainline-v6.4-rc1 commit f6365881bf797c734bf4cf1353bfa59ffd444f8f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAN96I

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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smatch reports mm/backing-dev.c:266:1: warning: symbol 'dev_attr_min_bytes' was not declared. Should it be static? mm/backing-dev.c:294:1: warning: symbol 'dev_attr_max_bytes' was not declared. Should it be static?

These variables are only used in one file so should be static.

Reported-by: kernel test robot lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202409120633.GHlgrbZp-lkp@intel.com/ Link: https://lkml.kernel.org/r/20230408141609.2703647-1-trix@redhat.com Signed-off-by: Tom Rix trix@redhat.com Reviewed-by: Christoph Hellwig hch@lst.de Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Yifan Qiao qiaoyifan4@huawei.com --- mm/backing-dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/backing-dev.c b/mm/backing-dev.c index 6e9162004a91..9b1f1141407b 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -261,7 +261,7 @@ static ssize_t min_bytes_store(struct device *dev,

return ret; } -DEVICE_ATTR_RW(min_bytes); +static DEVICE_ATTR_RW(min_bytes);

static ssize_t max_bytes_show(struct device *dev, struct device_attribute *attr, @@ -289,7 +289,7 @@ static ssize_t max_bytes_store(struct device *dev,

return ret; } -DEVICE_ATTR_RW(max_bytes); +static DEVICE_ATTR_RW(max_bytes);

static ssize_t stable_pages_required_show(struct device *dev, struct device_attribute *attr,