From: Bjorn Helgaas <helgaas@kernel.org>
To: Julia Lawall <Julia.Lawall@inria.fr>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
kernel-janitors@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 14/14] PCI/P2PDMA: drop double zeroing
Date: Mon, 28 Sep 2020 22:24:31 +0000 [thread overview]
Message-ID: <20200928222431.GA2501991@bjorn-Precision-5520> (raw)
In-Reply-To: <1600601186-7420-15-git-send-email-Julia.Lawall@inria.fr>
In-Reply-To: <1600601186-7420-15-git-send-email-Julia.Lawall@inria.fr>
On Sun, Sep 20, 2020 at 01:26:26PM +0200, Julia Lawall wrote:
> sg_init_table zeroes its first argument, so the allocation of that argument
> doesn't have to.
>
> the semantic patch that makes this change is as follows:
> (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@
> expression x;
> @@
>
> x > - kzalloc
> + kmalloc
> (...)
> ...
> sg_init_table(x,...)
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Applied to pci/misc for v5.10, thanks!
> ---
> drivers/pci/p2pdma.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff -u -p a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
> --- a/drivers/pci/p2pdma.c
> +++ b/drivers/pci/p2pdma.c
> @@ -762,7 +762,7 @@ struct scatterlist *pci_p2pmem_alloc_sgl
> struct scatterlist *sg;
> void *addr;
>
> - sg = kzalloc(sizeof(*sg), GFP_KERNEL);
> + sg = kmalloc(sizeof(*sg), GFP_KERNEL);
> if (!sg)
> return NULL;
>
>
next prev parent reply other threads:[~2020-09-28 22:24 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-20 11:26 [PATCH 00/14] drop double zeroing Julia Lawall
2020-09-20 11:26 ` [PATCH 01/14] pch_uart: " Julia Lawall
2020-09-20 12:14 ` Greg Kroah-Hartman
2020-09-20 12:47 ` Julia Lawall
2020-09-27 12:11 ` Greg Kroah-Hartman
2020-09-20 11:26 ` [PATCH 02/14] target/rd: " Julia Lawall
2020-10-08 2:31 ` Martin K. Petersen
2020-09-20 11:26 ` [PATCH 03/14] dpaa2-eth: " Julia Lawall
2020-09-21 2:09 ` David Miller
2020-09-20 11:26 ` [PATCH 04/14] dmaengine: sh: " Julia Lawall
2020-10-05 4:48 ` Vinod Koul
2020-09-20 11:26 ` [PATCH 05/14] RDMA/efa: " Julia Lawall
2020-09-21 7:13 ` Gal Pressman
2020-09-22 23:27 ` Jason Gunthorpe
2020-09-20 11:26 ` [PATCH 06/14] block: " Julia Lawall
2020-09-23 15:18 ` Jens Axboe
2020-09-20 11:26 ` [PATCH 07/14] RDS: " Julia Lawall
2020-09-21 2:09 ` David Miller
2020-09-20 11:26 ` [PATCH 08/14] xprtrdma: " Julia Lawall
2020-09-20 15:37 ` Chuck Lever
2020-09-20 11:26 ` [PATCH 09/14] dmaengine: rcar-dmac: " Julia Lawall
2020-10-05 4:48 ` Vinod Koul
2020-09-20 11:26 ` [PATCH 10/14] iwlwifi: dbg_ini: " Julia Lawall
2020-09-20 11:26 ` [PATCH 11/14] spi/topcliff-pch: " Julia Lawall
2020-09-20 11:26 ` [PATCH 12/14] [media] saa7146: " Julia Lawall
2020-09-20 11:26 ` [PATCH 13/14] misc: mic: " Julia Lawall
2020-09-20 11:26 ` [PATCH 14/14] PCI/P2PDMA: " Julia Lawall
2020-09-28 22:24 ` Bjorn Helgaas [this message]
2020-09-21 16:58 ` [PATCH 00/14] " Mark Brown
2020-09-23 15:10 ` Rolf Reintjes
2020-09-23 15:16 ` Mark Brown
2020-10-13 22:42 ` Martin K. Petersen
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