Re: [PATCH] x86/paravirt: Fix tlb_remove_table function callback prototype warning
From: Kees Cook <hidden>
Date: 2023-08-03 22:43:06
Also in:
linux-hardening, lkml, llvm
From: Kees Cook <hidden>
Date: 2023-08-03 22:43:06
Also in:
linux-hardening, lkml, llvm
On Wed, 26 Jul 2023 16:11:43 -0700, Kees Cook wrote:
Under W=1, this warning is visible in Clang 16 and newer:
arch/x86/kernel/paravirt.c:337:4: warning: cast from 'void (*)(struct mmu_gather *, struct page *)' to 'void (*)(struct mmu_gather *, void *)' converts to incompatible function type [-Wcast-function-type-strict]
(void (*)(struct mmu_gather *, void *))tlb_remove_page,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Add a direct wrapper instead, which will make this warning (and
potential KCFI failures) go away.
[...]
Applied to for-next/hardening, thanks!
[1/1] x86/paravirt: Fix tlb_remove_table function callback prototype warning
https://git.kernel.org/kees/c/fcce1c6cb156
Take care,
--
Kees Cook
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