Messages in this thread | | | Date | Wed, 22 Mar 2017 14:37:29 +0000 | From | Catalin Marinas <> | Subject | Re: [PATCH] [v2] arm64: define BUG() instruction without CONFIG_BUG |
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Hi Arnd,
On Tue, Mar 14, 2017 at 10:39:21PM +0100, Arnd Bergmann wrote: > This mirrors commit e9c38ceba8d9 ("ARM: 8455/1: define __BUG as > asm(BUG_INSTR) without CONFIG_BUG") to make the behavior of > arm64 consistent with arm and x86, and avoids lots of warnings in > randconfig builds, such as: > > kernel/seccomp.c: In function '__seccomp_filter': > kernel/seccomp.c:666:1: error: no return statement in function returning non-void [-Werror=return-type] > > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
A side-effect of this patch is that it turns WARN into BUG. I hit the WARN_ONCE in arch/arm64/kernel/efi.c:34 (on Juno with 64K pages) and with your patch applied, the kernel panics.
-- Catalin
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