linux-kernel - Re: [PATCH 11/11] iop-adma.c:1129: possible bad parameter in memset

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Message-ID: <20150316170257.GW32683@intel.com>
Date:	Mon, 16 Mar 2015 22:32:57 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Ameen Ali <ameenali023@...il.com>
Cc:	dan.j.williams@...el.com, dmaengine@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 11/11] iop-adma.c:1129: possible bad parameter in memset

On Fri, Mar 13, 2015 at 04:55:14PM +0200, Ameen Ali wrote:
> The 2nd memset() argument '286331153' doesn't fit into an 'unsigned char'.
care to explain hpow it is fixed...

> 
> Signed-off-by : <AmeenAli023@...il.com>
This is not proper, see Documentation/SubmittingPatches

> ---
>  drivers/dma/iop-adma.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
> index 263d9f6..78382b0 100644
> --- a/drivers/dma/iop-adma.c
> +++ b/drivers/dma/iop-adma.c
> @@ -1126,7 +1126,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device)
>  	/* Fill in src buffers */
>  	for (i = 0; i < IOP_ADMA_NUM_SRC_TEST; i++) {
>  		pq_sw[i] = page_address(pq[i]);
> -		memset(pq_sw[i], 0x11111111 * (1<<i), PAGE_SIZE);
> +		memset(pq_sw[i], 0x11111111 & (1<<i), PAGE_SIZE);
>  	}
>  	pq_sw[i] = page_address(pq[i]);
>  	pq_sw[i+1] = page_address(pq[i+1]);
> -- 
> 2.1.0
> 

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