linux-next build error (5)

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 35394d03 Add linux-next specific files for 20190904
git tree: linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=10a4b1fe600000
kernel config: https://syzkaller.appspot.com/x/.config?x=743e64ecb0d9ce4e
dashboard link: https://syzkaller.appspot.com/bug?extid=5d7739bb829b8f3b47fa
compiler: gcc (GCC) 9.0.0 20181231 (experimental)

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+5d7739...@syzkaller.appspotmail.com

./include/linux/gpio/driver.h:722:19: error: static declaration of
‘gpiochip_lock_as_irq’ follows non-static declaration

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[Eric Biggers]

No longer valid in latest linux-next.

#syz invalid