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: Sathya Prakash <sathya.prakash@xxxxxxxxxxxx> CC: Sreekanth Reddy <sreekanth.reddy@xxxxxxxxxxxx> CC: Suganath Prabu Subramani <suganath-prabu.subramani@xxxxxxxxxxxx> CC: MPT-FusionLinux.pdl@xxxxxxxxxxxx CC: linux-scsi@xxxxxxxxxxxxxxx Signed-off-by: Li Zhijian <lizhijian@xxxxxxxxxxx> --- 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@xxxxxxxxxxx/ --- drivers/message/fusion/mptscsih.c | 42 +++++++++++++++---------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 9080a73b4ea6..df4b2ebd30ec 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -3097,11 +3097,11 @@ mptscsih_version_fw_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02d.%02d.%02d.%02d\n", - (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, - (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, - (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, - ioc->facts.FWVersion.Word & 0x000000FF); + return sysfs_emit(buf, "%02d.%02d.%02d.%02d\n", + (ioc->facts.FWVersion.Word & 0xFF000000) >> 24, + (ioc->facts.FWVersion.Word & 0x00FF0000) >> 16, + (ioc->facts.FWVersion.Word & 0x0000FF00) >> 8, + ioc->facts.FWVersion.Word & 0x000000FF); } static DEVICE_ATTR(version_fw, S_IRUGO, mptscsih_version_fw_show, NULL); @@ -3113,11 +3113,11 @@ mptscsih_version_bios_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n", - (ioc->biosVersion & 0xFF000000) >> 24, - (ioc->biosVersion & 0x00FF0000) >> 16, - (ioc->biosVersion & 0x0000FF00) >> 8, - ioc->biosVersion & 0x000000FF); + return sysfs_emit(buf, "%02x.%02x.%02x.%02x\n", + (ioc->biosVersion & 0xFF000000) >> 24, + (ioc->biosVersion & 0x00FF0000) >> 16, + (ioc->biosVersion & 0x0000FF00) >> 8, + ioc->biosVersion & 0x000000FF); } static DEVICE_ATTR(version_bios, S_IRUGO, mptscsih_version_bios_show, NULL); @@ -3129,7 +3129,7 @@ mptscsih_version_mpi_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%03x\n", ioc->facts.MsgVersion); + return sysfs_emit(buf, "%03x\n", ioc->facts.MsgVersion); } static DEVICE_ATTR(version_mpi, S_IRUGO, mptscsih_version_mpi_show, NULL); @@ -3142,7 +3142,7 @@ char *buf) MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%s\n", ioc->prod_name); + return sysfs_emit(buf, "%s\n", ioc->prod_name); } static DEVICE_ATTR(version_product, S_IRUGO, mptscsih_version_product_show, NULL); @@ -3156,8 +3156,8 @@ mptscsih_version_nvdata_persistent_show(struct device *dev, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02xh\n", - ioc->nvdata_version_persistent); + return sysfs_emit(buf, "%02xh\n", + ioc->nvdata_version_persistent); } static DEVICE_ATTR(version_nvdata_persistent, S_IRUGO, mptscsih_version_nvdata_persistent_show, NULL); @@ -3170,7 +3170,7 @@ mptscsih_version_nvdata_default_show(struct device *dev, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02xh\n",ioc->nvdata_version_default); + return sysfs_emit(buf, "%02xh\n",ioc->nvdata_version_default); } static DEVICE_ATTR(version_nvdata_default, S_IRUGO, mptscsih_version_nvdata_default_show, NULL); @@ -3183,7 +3183,7 @@ mptscsih_board_name_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_name); + return sysfs_emit(buf, "%s\n", ioc->board_name); } static DEVICE_ATTR(board_name, S_IRUGO, mptscsih_board_name_show, NULL); @@ -3195,7 +3195,7 @@ mptscsih_board_assembly_show(struct device *dev, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_assembly); + return sysfs_emit(buf, "%s\n", ioc->board_assembly); } static DEVICE_ATTR(board_assembly, S_IRUGO, mptscsih_board_assembly_show, NULL); @@ -3208,7 +3208,7 @@ mptscsih_board_tracer_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%s\n", ioc->board_tracer); + return sysfs_emit(buf, "%s\n", ioc->board_tracer); } static DEVICE_ATTR(board_tracer, S_IRUGO, mptscsih_board_tracer_show, NULL); @@ -3221,7 +3221,7 @@ mptscsih_io_delay_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->io_missing_delay); + return sysfs_emit(buf, "%02d\n", ioc->io_missing_delay); } static DEVICE_ATTR(io_delay, S_IRUGO, mptscsih_io_delay_show, NULL); @@ -3234,7 +3234,7 @@ mptscsih_device_delay_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%02d\n", ioc->device_missing_delay); + return sysfs_emit(buf, "%02d\n", ioc->device_missing_delay); } static DEVICE_ATTR(device_delay, S_IRUGO, mptscsih_device_delay_show, NULL); @@ -3247,7 +3247,7 @@ mptscsih_debug_level_show(struct device *dev, struct device_attribute *attr, MPT_SCSI_HOST *hd = shost_priv(host); MPT_ADAPTER *ioc = hd->ioc; - return snprintf(buf, PAGE_SIZE, "%08xh\n", ioc->debug_level); + return sysfs_emit(buf, "%08xh\n", ioc->debug_level); } static ssize_t mptscsih_debug_level_store(struct device *dev, struct device_attribute *attr, -- 2.29.2
