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From: Eric Blake <eblake@redhat.com>
To: Thomas Huth <thuth@redhat.com>,
	qemu-devel@nongnu.org, qemu-trivial@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 1/4] hw/dma/pxa2xx: Remove superfluous memset
Date: Fri, 9 Oct 2015 16:58:21 -0600	[thread overview]
Message-ID: <5618468D.5010005@redhat.com> (raw)
In-Reply-To: <1444406198-6521-2-git-send-email-thuth@redhat.com>

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On 10/09/2015 09:56 AM, Thomas Huth wrote:
> g_malloc0 already clears the memory, so no need for
> the additional memset here. And while we're at it,
> also convert the g_malloc0 to the preferred g_new0.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  hw/dma/pxa2xx_dma.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)

Reviewed-by: Eric Blake <eblake@redhat.com>

> 
> diff --git a/hw/dma/pxa2xx_dma.c b/hw/dma/pxa2xx_dma.c
> index d4501fb..54cdb25 100644
> --- a/hw/dma/pxa2xx_dma.c
> +++ b/hw/dma/pxa2xx_dma.c
> @@ -459,9 +459,8 @@ static int pxa2xx_dma_init(SysBusDevice *sbd)
>          return -1;
>      }
>  
> -    s->chan = g_malloc0(sizeof(PXA2xxDMAChannel) * s->channels);
> +    s->chan = g_new0(PXA2xxDMAChannel, s->channels);
>  
> -    memset(s->chan, 0, sizeof(PXA2xxDMAChannel) * s->channels);
>      for (i = 0; i < s->channels; i ++)
>          s->chan[i].state = DCSR_STOPINTR;
>  
> 

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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  reply	other threads:[~2015-10-09 22:58 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-09 15:56 [Qemu-devel] [PATCH v2 0/4] Small optimizations for code using g_malloc0 + memset/memcpy Thomas Huth
2015-10-09 15:56 ` [Qemu-devel] [PATCH v2 1/4] hw/dma/pxa2xx: Remove superfluous memset Thomas Huth
2015-10-09 22:58   ` Eric Blake [this message]
2015-10-09 15:56 ` [Qemu-devel] [PATCH v2 2/4] hw/input/tsc210x: " Thomas Huth
2015-10-09 19:13   ` Eric Blake
2015-10-09 15:56 ` [Qemu-devel] [PATCH v2 3/4] tests/i44fx-test: No need for zeroing memory before memset Thomas Huth
2015-10-09 15:56 ` [Qemu-devel] [PATCH v2 4/4] linux-user/syscall: Replace g_malloc0 + memcpy with g_memdup Thomas Huth
2015-10-12 13:23   ` Riku Voipio
2015-10-29  7:53 ` [Qemu-devel] [PATCH v2 0/4] Small optimizations for code using g_malloc0 + memset/memcpy Michael Tokarev

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