linux-kernel - Re: [PATCH v4 08/21] psci: Fix the function type for psci_initcall

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Message-ID: <202208311122.FA0ECD5782@keescook>
Date:   Wed, 31 Aug 2022 11:22:55 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Sami Tolvanen <samitolvanen@...gle.com>
Cc:     linux-kernel@...r.kernel.org, Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>, x86@...nel.org,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Joao Moreira <joao@...rdrivepizza.com>,
        Sedat Dilek <sedat.dilek@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-hardening@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, llvm@...ts.linux.dev
Subject: Re: [PATCH v4 08/21] psci: Fix the function type for psci_initcall_t

On Tue, Aug 30, 2022 at 04:31:16PM -0700, Sami Tolvanen wrote:
> Functions called through a psci_initcall_t pointer all have
> non-const arguments. Fix the type definition to avoid tripping
> indirect call checks with CFI_CLANG.
> 
> Suggested-by: Mark Rutland <mark.rutland@....com>
> Signed-off-by: Sami Tolvanen <samitolvanen@...gle.com>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook