linux-kernel - Re: [PATCH -next] x86/efi: remove unused variables

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Date:   Fri, 29 Nov 2019 23:05:49 +1100
From:   Michael Ellerman <mpe@...erman.id.au>
To:     YueHaibing <yuehaibing@...wei.com>, jmorris@...ei.org,
        serge@...lyn.com, nayna@...ux.ibm.com, zohar@...ux.ibm.com,
        dhowells@...hat.com, jwboyer@...oraproject.org,
        yuehaibing@...wei.com
Cc:     linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH -next] x86/efi: remove unused variables

YueHaibing <yuehaibing@...wei.com> writes:
> commit ad723674d675 ("x86/efi: move common keyring
> handler functions to new file") leave this unused.
>
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  security/integrity/platform_certs/load_uefi.c | 5 -----
>  1 file changed, 5 deletions(-)

Thanks for spotting this, my x86 test builds did trigger it, but I
didn't notice the new warnings.

I've picked this up into the powerpc tree, as that's where the offending
commit is.

cheers

> diff --git a/security/integrity/platform_certs/load_uefi.c b/security/integrity/platform_certs/load_uefi.c
> index 4369204..111898a 100644
> --- a/security/integrity/platform_certs/load_uefi.c
> +++ b/security/integrity/platform_certs/load_uefi.c
> @@ -11,11 +11,6 @@
>  #include "../integrity.h"
>  #include "keyring_handler.h"
>  
> -static efi_guid_t efi_cert_x509_guid __initdata = EFI_CERT_X509_GUID;
> -static efi_guid_t efi_cert_x509_sha256_guid __initdata =
> -	EFI_CERT_X509_SHA256_GUID;
> -static efi_guid_t efi_cert_sha256_guid __initdata = EFI_CERT_SHA256_GUID;
> -
>  /*
>   * Look to see if a UEFI variable called MokIgnoreDB exists and return true if
>   * it does.
> -- 
> 2.7.4