linux-kernel - Re: [PATCH -next V8 02/14] riscv: elf

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Message-ID: <87iliq9psg.fsf@all.your.base.are.belong.to.us>
Date:   Mon, 05 Dec 2022 10:13:19 +0100
From:   Björn Töpel <bjorn@...nel.org>
To:     guoren@...nel.org, arnd@...db.de, guoren@...nel.org,
        palmer@...osinc.com, tglx@...utronix.de, peterz@...radead.org,
        luto@...nel.org, conor.dooley@...rochip.com, heiko@...ech.de,
        jszhang@...nel.org, lazyparser@...il.com, falcon@...ylab.org,
        chenhuacai@...nel.org, apatel@...tanamicro.com,
        atishp@...shpatra.org, palmer@...belt.com,
        paul.walmsley@...ive.com, mark.rutland@....com,
        zouyipeng@...wei.com, bigeasy@...utronix.de,
        David.Laight@...lab.com, chenzhongjin@...wei.com,
        greentime.hu@...ive.com, andy.chiu@...ive.com
Cc:     linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Guo Ren <guoren@...ux.alibaba.com>,
        kernel test robot <lkp@...el.com>
Subject: Re: [PATCH -next V8 02/14] riscv: elf_kexec: Fixup compile warning

guoren@...nel.org writes:

> From: Guo Ren <guoren@...ux.alibaba.com>
>
> If CRYTPO or CRYPTO_SHA256 or KEXE_FILE is not enabled, then:
>
> COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1
> O=build_dir ARCH=riscv SHELL=/bin/bash arch/riscv/
>
> ../arch/riscv/kernel/elf_kexec.c: In function 'elf_kexec_load':
> ../arch/riscv/kernel/elf_kexec.c:185:23: warning: variable
> 'kernel_start' set but not used [-Wunused-but-set-variable]
>   185 |         unsigned long kernel_start;
>       |                       ^~~~~~~~~~~~
>
> Fixes: 838b3e28488f ("RISC-V: Load purgatory in kexec_file")
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Signed-off-by: Guo Ren <guoren@...nel.org>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> Reported-by: kernel test robot <lkp@...el.com>
> ---
>  arch/riscv/kernel/elf_kexec.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/kernel/elf_kexec.c b/arch/riscv/kernel/elf_kexec.c
> index 0cb94992c15b..4b9264340b78 100644
> --- a/arch/riscv/kernel/elf_kexec.c
> +++ b/arch/riscv/kernel/elf_kexec.c
> @@ -198,7 +198,7 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
>  	if (ret)
>  		goto out;
>  	kernel_start = image->start;
> -	pr_notice("The entry point of kernel at 0x%lx\n", image->start);
> +	pr_notice("The entry point of kernel at 0x%lx\n", kernel_start);

This patch shouldn't be part of the generic entry series. It's just a
generic fix! Please have this as a separate patch.