linux-kernel - Re: [PATCH 2/2] bfp tools: Fix syscall argument

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Date:	Wed, 27 Apr 2016 11:01:43 +0800
From:	"Wangnan (F)" <wangnan0@...wei.com>
To:	Florian Fainelli <f.fainelli@...il.com>,
	<linux-kernel@...r.kernel.org>, <acme@...hat.com>
CC:	<ast@...nel.org>, <jolsa@...nel.org>
Subject: Re: [PATCH 2/2] bfp tools: Fix syscall argument



On 2016/4/25 10:34, Florian Fainelli wrote:
> Coverity flagged this under CID 1354884 as a sizeof mismatch, it turns
> out that the argument "attr" passed to syscall should have been a
> pointer to attr in the first place.
>
> Reported-by: coverity (CID 1354884)
> Fixes: 8f9e05fb298f ("perf tools: Fix PowerPC native building")
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
>   tools/build/feature/test-bpf.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
> index 8236df9a46ca..e04ab89a1013 100644
> --- a/tools/build/feature/test-bpf.c
> +++ b/tools/build/feature/test-bpf.c
> @@ -31,5 +31,5 @@ int main(void)
>   	 * Test existence of __NR_bpf and BPF_PROG_LOAD.
>   	 * This call should fail if we run the testcase.
>   	 */
> -	return syscall(__NR_bpf, BPF_PROG_LOAD, attr, sizeof(attr));
> +	return syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
>   }
Acked-by: Wang Nan <wangnan0@...wei.com>