| Message ID | 20240315055211.1347548-1-lizhijian@fujitsu.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/3] wifi: ath: Convert sprintf/snprintf to sysfs_emit | expand |
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: Kalle Valo <kvalo@kernel.org> > CC: Jeff Johnson <jjohnson@kernel.org> > CC: linux-wireless@vger.kernel.org > CC: ath11k@lists.infradead.org > CC: ath10k@lists.infradead.org > Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> > Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com> Patch applied to ath-next branch of ath.git, thanks. fa1a4f15bdca wifi: ath: Convert sprintf/snprintf to sysfs_emit
diff --git a/drivers/net/wireless/ath/ath10k/thermal.c b/drivers/net/wireless/ath/ath10k/thermal.c index 31c8d7fbb095..8b15ec07b107 100644 --- a/drivers/net/wireless/ath/ath10k/thermal.c +++ b/drivers/net/wireless/ath/ath10k/thermal.c @@ -100,7 +100,7 @@ static ssize_t ath10k_thermal_show_temp(struct device *dev, spin_unlock_bh(&ar->data_lock); /* display in millidegree celsius */ - ret = snprintf(buf, PAGE_SIZE, "%d\n", temperature * 1000); + ret = sysfs_emit(buf, "%d\n", temperature * 1000); out: mutex_unlock(&ar->conf_mutex); return ret; diff --git a/drivers/net/wireless/ath/ath11k/thermal.c b/drivers/net/wireless/ath/ath11k/thermal.c index 41e7499f075f..18d6eab5cce3 100644 --- a/drivers/net/wireless/ath/ath11k/thermal.c +++ b/drivers/net/wireless/ath/ath11k/thermal.c @@ -101,7 +101,7 @@ static ssize_t ath11k_thermal_show_temp(struct device *dev, spin_unlock_bh(&ar->data_lock); /* display in millidegree Celsius */ - ret = snprintf(buf, PAGE_SIZE, "%d\n", temperature * 1000); + ret = sysfs_emit(buf, "%d\n", temperature * 1000); out: mutex_unlock(&ar->conf_mutex); 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: Kalle Valo <kvalo@kernel.org> CC: Jeff Johnson <jjohnson@kernel.org> CC: linux-wireless@vger.kernel.org CC: ath11k@lists.infradead.org CC: ath10k@lists.infradead.org Signed-off-by: Li Zhijian <lizhijian@fujitsu.com> --- V2: subject updated 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/net/wireless/ath/ath10k/thermal.c | 2 +- drivers/net/wireless/ath/ath11k/thermal.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)