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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-27 12:25:42 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-27 12:25:42 -0700 |
| commit | 4baa098a147d76a9ad1a6867fa14286db52085b6 (patch) | |
| tree | 7e75c0343e407436d279aa9dad56e033f192cc19 /tools/arch | |
| parent | 4aacacee8617424e1dacead8d830e5b768eb3e53 (diff) | |
| parent | 5516c89d58283413134f8d26960c6303d5d5bd89 (diff) | |
Merge tag 'x86_misc_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull misc x86 updates from Borislav Petkov:
- Remove the local symbols prefix of the get/put_user() exception
handling symbols so that tools do not get confused by the presence of
code belonging to the wrong symbol/not belonging to any symbol
- Improve csum_partial()'s performance
- Some improvements to the kcpuid tool
* tag 'x86_misc_for_v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/lib: Make get/put_user() exception handling a visible symbol
x86/csum: Fix clang -Wuninitialized in csum_partial()
x86/csum: Improve performance of `csum_partial`
tools/x86/kcpuid: Add .gitignore
tools/x86/kcpuid: Dump the correct CPUID function in error
Diffstat (limited to 'tools/arch')
| -rw-r--r-- | tools/arch/x86/kcpuid/.gitignore | 1 | ||||
| -rw-r--r-- | tools/arch/x86/kcpuid/kcpuid.c | 7 |
2 files changed, 5 insertions, 3 deletions
diff --git a/tools/arch/x86/kcpuid/.gitignore b/tools/arch/x86/kcpuid/.gitignore new file mode 100644 index 000000000000..1b8541bc8dd0 --- /dev/null +++ b/tools/arch/x86/kcpuid/.gitignore @@ -0,0 +1 @@ +kcpuid diff --git a/tools/arch/x86/kcpuid/kcpuid.c b/tools/arch/x86/kcpuid/kcpuid.c index 416f5b35dd8f..24b7d017ec2c 100644 --- a/tools/arch/x86/kcpuid/kcpuid.c +++ b/tools/arch/x86/kcpuid/kcpuid.c @@ -517,15 +517,16 @@ static void show_range(struct cpuid_range *range) static inline struct cpuid_func *index_to_func(u32 index) { struct cpuid_range *range; + u32 func_idx; range = (index & 0x80000000) ? leafs_ext : leafs_basic; - index &= 0x7FFFFFFF; + func_idx = index & 0xffff; - if (((index & 0xFFFF) + 1) > (u32)range->nr) { + if ((func_idx + 1) > (u32)range->nr) { printf("ERR: invalid input index (0x%x)\n", index); return NULL; } - return &range->funcs[index]; + return &range->funcs[func_idx]; } static void show_info(void) |