Re: [Xen-devel] [PATCH v2] xen-netfront: fix warn message as irq device name has '/'

[David Miller <davem@xxxxxxxxxxxxx>]

From: Xiao Liang <xiliang@xxxxxxxxxx>
Date: Sat, 11 Aug 2018 23:21:37 +0800

> There is a call trace generated after commit 
> 2d408c0d4574b01b9ed45e02516888bf925e11a9(
> xen-netfront: fix queue name setting). There is no 'device/vif/xx-q0-tx' file 
> found
> under /proc/irq/xx/.
> 
> This patch only picks up device type and id as its name.

This adds a compile warning:

drivers/net/xen-netfront.c: In function ‘xennet_init_queue’:
drivers/net/xen-netfront.c:1614:2: warning: ignoring return value of 
‘kstrtoint’, declared with attribute warn_unused_result [-Wunused-result]
  kstrtoint(strrchr(queue->info->xbdev->nodename, '/') + 1, 10, &devid);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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