github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-22 04:34:03 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iommu/amd: Remove redundant checks from interrupt handler path

Browse Source 
PPR and GAlog interrupt is enabled only if buffer is allocated.
(See amd_iommu_enable_ppr_log() and iommu_ga_log_enable()).

The duplicate check in interrupt hanlder path is unnecessary
and can be removed.

No functional changes.

Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Vasant Hegde 2026-09-11 08:33:52 +00:00 committed by Joerg Roedel
parent 5e1afd4ea1
commit 80a4e3ad8d
2 changed files with 0 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/iommu/amd/iommu.c
View File

@ -1076,9 +1076,6 @@ static void iommu_poll_ga_log(struct amd_iommu *iommu)
{
u32 head, tail;
if (iommu->ga_log == NULL)
return;
head = readl(iommu->mmio_base + MMIO_GA_HEAD_OFFSET);
tail = readl(iommu->mmio_base + MMIO_GA_TAIL_OFFSET);

3
drivers/iommu/amd/ppr.c
View File

@ -165,9 +165,6 @@ void amd_iommu_poll_ppr_log(struct amd_iommu *iommu)
{
u32 head, tail;
if (iommu->ppr_log == NULL)
return;
head = readl(iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
tail = readl(iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);