linux-kernel - linux-next: manual merge of the tip tree with the arm64 tree

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Date:   Fri, 31 Mar 2017 14:02:17 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Catalin Marinas <catalin.marinas@....com>
Cc:     Linux-Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: linux-next: manual merge of the tip tree with the arm64 tree

Hi all,

Today's linux-next merge of the tip tree got a conflict in:

  arch/arm64/include/asm/bug.h

between commit:

  f13d52cb3fad ("arm64: define BUG() instruction without CONFIG_BUG")

from the arm64 tree and commit:

  19d436268dde ("debug: Add _ONCE() logic to report_bug()")

from the tip tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/arm64/include/asm/bug.h
index 0bfe1df12b19,a9be1072933c..000000000000
--- a/arch/arm64/include/asm/bug.h
+++ b/arch/arm64/include/asm/bug.h
@@@ -42,27 -45,19 +42,26 @@@
  _BUGVERBOSE_LOCATION(__FILE__, __LINE__)		\
  		".short " #flags "\n\t"			\
  		".popsection\n"				\
 -							\
 -	"1:	brk %[imm]"				\
 -		:: [imm] "i" (BUG_BRK_IMM)		\
 -)
 +	"1:	"
 +#else
 +#define __BUG_ENTRY(flags) ""
 +#endif
 +
 +#define __BUG_FLAGS(flags)				\
 +	asm volatile (					\
 +		__BUG_ENTRY(flags)			\
 +		"brk %[imm]" :: [imm] "i" (BUG_BRK_IMM)	\
 +	);
  
 -#define BUG() do {				\
 -	_BUG_FLAGS(0);				\
 -	unreachable();				\
 +
 +#define BUG() do {					\
 +	__BUG_FLAGS(0);					\
 +	unreachable();					\
  } while (0)
  
- #define __WARN_TAINT(taint) 				\
- 	__BUG_FLAGS(BUGFLAG_TAINT(taint))
+ #define __WARN_FLAGS(flags) _BUG_FLAGS(BUGFLAG_WARNING|(flags))
  
 -#endif /* ! CONFIG_GENERIC_BUG */
 +#define HAVE_ARCH_BUG
  
  #include <asm-generic/bug.h>