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(parent: 4c132d1) | patch
x86/uaccess: Remove .fixup usage
authorPeter Zijlstra <peterz@infradead.org>
Wed, 10 Nov 2021 10:01:12 +0000 (11:01 +0100)
committerPeter Zijlstra <peterz@infradead.org>
Sat, 11 Dec 2021 08:09:47 +0000 (09:09 +0100)
commit99641e094d6ccf547b3eba833aea9a34fdf5681e
treee527b5ba2d297cc372c6f8165c39d5a8767a37d0tree | snapshot
parent4c132d1d844a53fc4e4b5c34e36ef10d6124b783commit | diff
x86/uaccess: Remove .fixup usage

For the !CC_AS_ASM_GOTO_OUTPUT (aka. the legacy codepath), remove the
.fixup usage by employing both EX_TYPE_EFAULT_REG and EX_FLAG_CLEAR.
Like was already done for X86_32's version of __get_user_asm_u64() use
the "a" register for output, specifically so we can use CLEAR_AX.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/20211110101325.485154848@infradead.org
arch/x86/include/asm/uaccess.h diff | blob | history
Domain: System / Kernel;