Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: linux-next: build warning after merge of the tip tree | Date | Wed, 01 Apr 2020 12:25:25 +0200 |
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Stephen Rothwell <sfr@canb.auug.org.au> writes: > Hi all, > > On Mon, 30 Mar 2020 13:47:46 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote: >> >> Hi all, >> >> After merging the tip tree, today's linux-next build (arm >> multi_v7_defconfig) produced this warning: >> >> kernel/futex.c: In function 'do_futex': >> kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] >> 1676 | return oldval == cmparg; >> | ~~~~~~~^~~~~~~~~ >> kernel/futex.c:1652:6: note: 'oldval' was declared here >> 1652 | int oldval, ret; >> | ^~~~~~ >> >> Introduced by commit >> >> a08971e9488d ("futex: arch_futex_atomic_op_inuser() calling >> conventions change")
Huch?
>> but I don't see how it makes this difference :-(
Me neither. Which compiler version?
I'm using arm-linux-gnueabi-gcc (Debian 8.3.0-2) 8.3.0 which does not show that oddity.
Thanks,
tglx
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