linux-next: build warning after merge of the drivers-x86 tree

From: Stephen Rothwell
Date: Tue Dec 13 2016 - 22:01:35 EST


Hi Darren,

After merging the drivers-x86 tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

In file included from include/linux/kernel.h:13:0,
from drivers/platform/x86/thinkpad_acpi.c:52:
drivers/platform/x86/thinkpad_acpi.c: In function 'hotkey_init':
include/linux/printk.h:299:2: warning: 'type' may be used uninitialized in this function [-Wmaybe-uninitialized]
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
^
drivers/platform/x86/thinkpad_acpi.c:3147:8: note: 'type' was declared here
char *type;
^
In file included from include/linux/kernel.h:13:0,
from drivers/platform/x86/thinkpad_acpi.c:52:
include/linux/printk.h:299:2: warning: 'in_tablet_mode' may be used uninitialized in this function [-Wmaybe-uninitialized]
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
^
drivers/platform/x86/thinkpad_acpi.c:3146:6: note: 'in_tablet_mode' was declared here
int in_tablet_mode, res;
^

Introduced by commit

b31800283868 ("platform/x86: thinkpad_acpi: Move tablet detection into separate function")

I can't tell if this is a false positive or not.

--
Cheers,
Stephen Rothwell