diff options
| author | Ingo Molnar <[email protected]> | 2021-11-16 06:13:05 +0100 |
|---|---|---|
| committer | Dave Hansen <[email protected]> | 2021-12-03 09:30:45 -0800 |
| commit | e1cd82a339024beda8439fb2e20718363ee989a8 (patch) | |
| tree | 8edcd8ceb00ed27e4371987d2c18bbf415903fdc /scripts/bpf_doc.py | |
| parent | d58071a8a76d779eedab38033ae4c821c30295a5 (diff) | |
x86/mm: Add missing <asm/cpufeatures.h> dependency to <asm/page_64.h>
In the following commit:
025768a966a3 x86/cpu: Use alternative to generate the TASK_SIZE_MAX constant
... we added the new task_size_max() inline, which uses X86_FEATURE_LA57,
but doesn't include <asm/cpufeatures.h> which defines the constant.
Due to the way alternatives macros work currently this doesn't get reported as an
immediate build error, only as a link error, if a .c file happens to include
<asm/page.h> first:
> ld: kernel/fork.o:(.altinstructions+0x98): undefined reference to `X86_FEATURE_LA57'
In the current upstream kernel no .c file includes <asm/page.h> before including
some other header that includes <asm/cpufeatures.h>, which is why this dependency
bug went unnoticed.
Cc: Linus Torvalds <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'scripts/bpf_doc.py')
0 files changed, 0 insertions, 0 deletions