* [PATCH v1 1/1] x86/events/amd/iommu: Increase IOMMU_NAME_SIZE
@ 2025-02-10 19:34 Andy Shevchenko
0 siblings, 0 replies; only message in thread
From: Andy Shevchenko @ 2025-02-10 19:34 UTC (permalink / raw)
To: Andy Shevchenko, linux-perf-users, linux-kernel
Cc: Peter Zijlstra, Ingo Molnar, Arnaldo Carvalho de Melo,
Namhyung Kim, Mark Rutland, Alexander Shishkin, Jiri Olsa,
Ian Rogers, Adrian Hunter, Liang, Kan, Thomas Gleixner,
Borislav Petkov, Dave Hansen, x86, H. Peter Anvin
The init_one_iommu() takes an unsigned int argument that can't be checked for
the boundaries at compile time and GCC complains about that when build with
`make W=1`:
arch/x86/events/amd/iommu.c:441:53: note: directive argument in the range [0, 4294967294]
arch/x86/events/amd/iommu.c:441:9: note: ‘snprintf’ output between 12 and 21 bytes into a destination of size 16
Increase the size to cover all possible cases.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
arch/x86/events/amd/iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
index b15f7b950d2e..f8228d8243f7 100644
--- a/arch/x86/events/amd/iommu.c
+++ b/arch/x86/events/amd/iommu.c
@@ -30,7 +30,7 @@
#define GET_DOMID_MASK(x) (((x)->conf1 >> 16) & 0xFFFFULL)
#define GET_PASID_MASK(x) (((x)->conf1 >> 32) & 0xFFFFFULL)
-#define IOMMU_NAME_SIZE 16
+#define IOMMU_NAME_SIZE 24
struct perf_amd_iommu {
struct list_head list;
--
2.45.1.3035.g276e886db78b
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2025-02-10 19:34 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-02-10 19:34 [PATCH v1 1/1] x86/events/amd/iommu: Increase IOMMU_NAME_SIZE Andy Shevchenko
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).