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| author |   Lu Baolu <baolu.lu@linux.intel.com> | 2023-03-22 20:34:21 +0800 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2023-03-22 15:47:10 +0100 |
| commit | c33fcc13ee0d02efe5729588e8fba8b899c8879a (patch) | |
| tree | 9b545d19c4cffd19aeabb0c61eb73b5778024dd2 /drivers/iommu/amd/init.c | |
| parent | iommu: Cleanup iommu_change_dev_def_domain() (diff) | |
| download | wireguard-linux-c33fcc13ee0d02efe5729588e8fba8b899c8879a.tar.xz wireguard-linux-c33fcc13ee0d02efe5729588e8fba8b899c8879a.zip | |
iommu: Use sysfs_emit() for sysfs show
Use sysfs_emit() instead of the sprintf() for sysfs entries. sysfs_emit()
knows the maximum of the temporary buffer used for outputting sysfs
content and avoids overrunning the buffer length.
Prefer 'long long' over 'long long int' as suggested by checkpatch.pl.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20230322123421.278852-1-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/init.c')
| -rw-r--r-- | drivers/iommu/amd/init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 19a46b9f7357..a98202018140 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -1941,7 +1941,7 @@ static ssize_t amd_iommu_show_cap(struct device *dev, char *buf) { struct amd_iommu *iommu = dev_to_amd_iommu(dev); - return sprintf(buf, "%x\n", iommu->cap); + return sysfs_emit(buf, "%x\n", iommu->cap); } static DEVICE_ATTR(cap, S_IRUGO, amd_iommu_show_cap, NULL); @@ -1950,7 +1950,7 @@ static ssize_t amd_iommu_show_features(struct device *dev, char *buf) { struct amd_iommu *iommu = dev_to_amd_iommu(dev); - return sprintf(buf, "%llx:%llx\n", iommu->features2, iommu->features); + return sysfs_emit(buf, "%llx:%llx\n", iommu->features2, iommu->features); } static DEVICE_ATTR(features, S_IRUGO, amd_iommu_show_features, NULL); |