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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-13 12:41:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-13 12:41:47 -0700
commite4e453434a199cdfa1e1e5cc723d8736f522354a (patch)
treed45250bdfc9eecde38ec0c306d5caecb531f3ba2
parent960f0716d80fb8241356ba862a4c377c7250121f (diff)
parent36524112aba3246d1240c1791c72b26fa54008a3 (diff)
Merge tag 'perf-tools-fixes-for-v5.13-2021-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools fixes from Arnaldo Carvalho de Melo: - Correct buffer copying when peeking events - Sync cpufeatures/disabled-features.h header with the kernel sources * tag 'perf-tools-fixes-for-v5.13-2021-06-13' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: tools headers cpufeatures: Sync with the kernel sources perf session: Correct buffer copying when peeking events
-rw-r--r--tools/arch/x86/include/asm/disabled-features.h7
-rw-r--r--tools/perf/util/session.c1
2 files changed, 3 insertions, 5 deletions
diff --git a/tools/arch/x86/include/asm/disabled-features.h b/tools/arch/x86/include/asm/disabled-features.h
index b7dd944dc867..8f28fafa98b3 100644
--- a/tools/arch/x86/include/asm/disabled-features.h
+++ b/tools/arch/x86/include/asm/disabled-features.h
@@ -56,11 +56,8 @@
# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
#endif
-#ifdef CONFIG_IOMMU_SUPPORT
-# define DISABLE_ENQCMD 0
-#else
-# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
-#endif
+/* Force disable because it's broken beyond repair */
+#define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
#ifdef CONFIG_X86_SGX
# define DISABLE_SGX 0
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 106b3d60881a..e59242c361ce 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1723,6 +1723,7 @@ int perf_session__peek_event(struct perf_session *session, off_t file_offset,
if (event->header.size < hdr_sz || event->header.size > buf_sz)
return -1;
+ buf += hdr_sz;
rest = event->header.size - hdr_sz;
if (readn(fd, buf, rest) != (ssize_t)rest)