linux-kernel - Re: [PATCH] kexec: restore arch_kexec_kernel_image

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Message-ID: <20190730094559.GA11557@dhcp-128-65.nay.redhat.com>
Date:   Tue, 30 Jul 2019 17:45:59 +0800
From:   Dave Young <dyoung@...hat.com>
To:     Vasily Gorbik <gor@...ux.ibm.com>
Cc:     Eric Biederman <ebiederm@...ssion.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kexec@...ts.infradead.org, linux-kernel@...r.kernel.org,
        AKASHI Takahiro <takahiro.akashi@...aro.org>
Subject: Re: [PATCH] kexec: restore arch_kexec_kernel_image_probe declaration

On 07/29/19 at 02:14pm, Vasily Gorbik wrote:
> arch_kexec_kernel_image_probe function declaration has been removed by
> commit 9ec4ecef0af7 ("kexec_file,x86,powerpc: factor out kexec_file_ops
> functions"). Still this function is overridden by couple of architectures
> and proper prototype declaration is therefore important, so bring it
> back. This fixes the following sparse warning on s390:
> arch/s390/kernel/machine_kexec_file.c:333:5: warning: symbol 'arch_kexec_kernel_image_probe' was not declared. Should it be static?
> 
> Signed-off-by: Vasily Gorbik <gor@...ux.ibm.com>
> ---
>  include/linux/kexec.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/linux/kexec.h b/include/linux/kexec.h
> index 1740fe36b5b7..f7529d120920 100644
> --- a/include/linux/kexec.h
> +++ b/include/linux/kexec.h
> @@ -183,6 +183,8 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
>  				   bool get_value);
>  void *kexec_purgatory_get_symbol_addr(struct kimage *image, const char *name);
>  
> +int __weak arch_kexec_kernel_image_probe(struct kimage *image, void *buf,
> +					 unsigned long buf_len);
>  void * __weak arch_kexec_kernel_image_load(struct kimage *image);
>  int __weak arch_kexec_apply_relocations_add(struct purgatory_info *pi,
>  					    Elf_Shdr *section,
> -- 
> 2.21.0
> 

Acked-by: Dave Young <dyoung@...hat.com>

Thanks
Dave