Messages in this thread | | | Date | Tue, 12 May 2015 10:53:03 +0200 | From | Ingo Molnar <> | Subject | Re: [tip:x86/build] x86/build: Remove -Wno-sign-compare |
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* Ingo Molnar <mingo@kernel.org> wrote:
> Here's the full list of warnings for allmod64: > > make bzImage: > > include/linux/blkdev.h:624:26: warning: switch condition has boolean value [-Wswitch-bool] > ./arch/x86/include/asm/qspinlock.h:28:2: warning: implicit declaration of function ?pv_queued_spin_lock_slowpath? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:33:2: warning: implicit declaration of function ?pv_queued_spin_unlock? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:28:2: warning: implicit declaration of function ?pv_queued_spin_lock_slowpath? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:33:2: warning: implicit declaration of function ?pv_queued_spin_unlock? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:28:2: warning: implicit declaration of function ?pv_queued_spin_lock_slowpath? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:33:2: warning: implicit declaration of function ?pv_queued_spin_unlock? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:28:2: warning: implicit declaration of function ?pv_queued_spin_lock_slowpath? [-Wimplicit-function-declaration] > ./arch/x86/include/asm/qspinlock.h:33:2: warning: implicit declaration of function ?pv_queued_spin_unlock? [-Wimplicit-function-declaration]
And that comes from tip:locking/core, but those warnings do not show up with GCC 4.9.2: so it's either a GCC 5.0.1 bug, or we missed something with the WIP queued pv spinlocks changes that newer GCC is able to notice.
Thanks,
Ingo
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