| Message ID | 20240314091512.1323650-1-lizhijian@fujitsu.com |
|---|---|
| State | New |
| Headers | show |
| Series | mmc: core: Convert sprintf/snprintf to sysfs_emit | expand |
On Thu, 14 Mar 2024 at 10:15, Li Zhijian <lizhijian@fujitsu.com> wrote: > > Per filesystems/sysfs.rst, show() should only use sysfs_emit() > or sysfs_emit_at() when formatting the value to be returned to user space. > > coccinelle complains that there are still a couple of functions that use > snprintf(). Convert them to sysfs_emit(). > > sprintf() will be converted as weel if they have. > > Generally, this patch is generated by > make coccicheck M=<path/to/file> MODE=patch \ > COCCI=scripts/coccinelle/api/device_attr_show.cocci > > No functional change intended > > CC: Ulf Hansson <ulf.hansson@linaro.org> > CC: linux-mmc@vger.kernel.org > Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> Applied for next, thanks! Kind regards Uffe > --- > This is a part of the work "Fix coccicheck device_attr_show warnings"[1] > Split them per subsystem so that the maintainer can review it easily > [1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/ > --- > drivers/mmc/core/block.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c > index 64a3492e8002..1e1e136d9e72 100644 > --- a/drivers/mmc/core/block.c > +++ b/drivers/mmc/core/block.c > @@ -234,7 +234,7 @@ static ssize_t power_ro_lock_show(struct device *dev, > else if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_EN) > locked = 1; > > - ret = snprintf(buf, PAGE_SIZE, "%d\n", locked); > + ret = sysfs_emit(buf, "%d\n", locked); > > mmc_blk_put(md); > > @@ -296,9 +296,9 @@ static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr, > int ret; > struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev)); > > - ret = snprintf(buf, PAGE_SIZE, "%d\n", > - get_disk_ro(dev_to_disk(dev)) ^ > - md->read_only); > + ret = sysfs_emit(buf, "%d\n", > + get_disk_ro(dev_to_disk(dev)) ^ > + md->read_only); > mmc_blk_put(md); > return ret; > } > -- > 2.29.2 >
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 64a3492e8002..1e1e136d9e72 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -234,7 +234,7 @@ static ssize_t power_ro_lock_show(struct device *dev, else if (card->ext_csd.boot_ro_lock & EXT_CSD_BOOT_WP_B_PWR_WP_EN) locked = 1; - ret = snprintf(buf, PAGE_SIZE, "%d\n", locked); + ret = sysfs_emit(buf, "%d\n", locked); mmc_blk_put(md); @@ -296,9 +296,9 @@ static ssize_t force_ro_show(struct device *dev, struct device_attribute *attr, int ret; struct mmc_blk_data *md = mmc_blk_get(dev_to_disk(dev)); - ret = snprintf(buf, PAGE_SIZE, "%d\n", - get_disk_ro(dev_to_disk(dev)) ^ - md->read_only); + ret = sysfs_emit(buf, "%d\n", + get_disk_ro(dev_to_disk(dev)) ^ + md->read_only); mmc_blk_put(md); return ret; }
Per filesystems/sysfs.rst, show() should only use sysfs_emit() or sysfs_emit_at() when formatting the value to be returned to user space. coccinelle complains that there are still a couple of functions that use snprintf(). Convert them to sysfs_emit(). sprintf() will be converted as weel if they have. Generally, this patch is generated by make coccicheck M=<path/to/file> MODE=patch \ COCCI=scripts/coccinelle/api/device_attr_show.cocci No functional change intended CC: Ulf Hansson <ulf.hansson@linaro.org> CC: linux-mmc@vger.kernel.org Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> --- This is a part of the work "Fix coccicheck device_attr_show warnings"[1] Split them per subsystem so that the maintainer can review it easily [1] https://lore.kernel.org/lkml/20240116041129.3937800-1-lizhijian@fujitsu.com/ --- drivers/mmc/core/block.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)