From: Logan Gunthorpe <logang@deltatee.com>
To: Julia Lawall <julia.lawall@lip6.fr>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: kbuild-all@01.org, Kurt Schwemmer <kurt.schwemmer@microsemi.com>,
Bjorn Helgaas <helgaas@kernel.org>,
linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org,
Kirill Smelkov <kirr@nexedi.com>
Subject: Re: [PATCH] pci/switchtec: fix stream_open.cocci warnings (fwd)
Date: Sat, 13 Apr 2019 10:56:37 -0600 [thread overview]
Message-ID: <306cc455-0506-6561-c4ad-95478e106161@deltatee.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1904131849350.2536@hadrien>
On 2019-04-13 10:50 a.m., Julia Lawall wrote:
> Hello,
>
> Kirill will explain about this issue.
I'm aware of this effort and Acked Kirill's original monolithic patch.
So, for this patch:
Acked-by: Logan Gunthorpe <logang@deltatee.com.
Thanks,
Logan
> julia
>
> ---------- Forwarded message ----------
> Date: Sat, 13 Apr 2019 11:22:51 +0800
> From: kbuild test robot <lkp@intel.com>
> To: kbuild@01.org
> Cc: Julia Lawall <julia.lawall@lip6.fr>
> Subject: [PATCH] pci/switchtec: fix stream_open.cocci warnings
>
> CC: kbuild-all@01.org
> TO: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> CC: Kurt Schwemmer <kurt.schwemmer@microsemi.com>
> CC: Logan Gunthorpe <logang@deltatee.com>
> CC: Bjorn Helgaas <helgaas@kernel.org>
> CC: linux-pci@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
>
> From: kbuild test robot <lkp@intel.com>
>
> drivers/pci/switch/switchtec.c:395:1-17: ERROR: switchtec_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
>
> Generated by: scripts/coccinelle/api/stream_open.cocci
>
> Fixes: 8a29a3bae2a2 ("pci/switchtec: Don't use completion's wait queue")
> Signed-off-by: kbuild test robot <lkp@intel.com>
> ---
>
> tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.0.y-rt-rebase
> head: 794c294ae4483c240429c25a0d18e272e92c94de
> commit: 8a29a3bae2a2dfb0116cd8791d9700515d6e765e [154/311] pci/switchtec: Don't use completion's wait queue
> :::::: branch date: 7 hours ago
> :::::: commit date: 7 hours ago
>
> Please take the patch only if it's a positive warning. Thanks!
>
> switchtec.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- a/drivers/pci/switch/switchtec.c
> +++ b/drivers/pci/switch/switchtec.c
> @@ -392,7 +392,7 @@ static int switchtec_dev_open(struct ino
> return PTR_ERR(stuser);
>
> filp->private_data = stuser;
> - nonseekable_open(inode, filp);
> + stream_open(inode, filp);
>
> dev_dbg(&stdev->dev, "%s: %p\n", __func__, stuser);
>
next prev parent reply other threads:[~2019-04-13 16:56 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-13 16:50 [PATCH] pci/switchtec: fix stream_open.cocci warnings (fwd) Julia Lawall
2019-04-13 16:56 ` Logan Gunthorpe [this message]
2019-04-13 17:01 ` Kirill Smelkov
2019-04-15 14:38 ` Sebastian Andrzej Siewior
2019-04-15 14:55 ` Kirill Smelkov
2019-04-15 15:20 ` Sebastian Andrzej Siewior
2019-04-15 15:41 ` Kirill Smelkov
2019-04-17 21:54 ` Bjorn Helgaas
2019-04-18 5:31 ` Julia Lawall
2019-04-18 10:38 ` Kirill Smelkov
2019-04-18 12:37 ` Bjorn Helgaas
2019-04-18 14:42 ` Kirill Smelkov
[not found] <alpine.DEB.2.20.1906191227430.3726@hadrien>
2019-06-19 16:27 ` Kirill Smelkov
2019-06-19 19:47 ` Logan Gunthorpe
2019-06-19 20:19 ` Bjorn Helgaas
2019-06-19 20:21 ` Julia Lawall
2019-06-20 7:01 ` kirr
2019-06-21 16:42 ` Sebastian Andrzej Siewior
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