linux-kernel - linux-next: build failure after merge of the tip tree

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Message-ID: <20201109143422.2e7512b0@canb.auug.org.au>
Date:   Mon, 9 Nov 2020 14:34:22 +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>
Cc:     Jens Axboe <axboe@...nel.dk>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the tip tree

Hi all,

After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

In file included from include/linux/thread_info.h:38,
                 from arch/x86/include/asm/preempt.h:7,
                 from include/linux/preempt.h:78,
                 from include/linux/spinlock.h:51,
                 from include/linux/mmzone.h:8,
                 from include/linux/gfp.h:6,
                 from include/linux/slab.h:15,
                 from include/linux/crypto.h:20,
                 from arch/x86/kernel/asm-offsets.c:9:
arch/x86/include/asm/thread_info.h:96: warning: "TIF_NOTIFY_SIGNAL" redefined
   96 | #define TIF_NOTIFY_SIGNAL 19 /* signal notifications exist */
      | 
arch/x86/include/asm/thread_info.h:94: note: this is the location of the previous definition
   94 | #define TIF_NOTIFY_SIGNAL 17 /* signal notifications exist */
      | 

Caused by commit

  c8d5ed67936f ("x86: Wire up TIF_NOTIFY_SIGNAL")

interacting with commit

  323b0fba756d ("x86: wire up TIF_NOTIFY_SIGNAL")

from the block tree.

I added the following merge fix patch.

Please sort out these separate versions of the series ... maybe use a
common branch.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Mon, 9 Nov 2020 14:31:50 +1100
Subject: [PATCH] fix up conflict in "x86: wire up TIF_NOTIFY_SIGNAL" versions

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/x86/include/asm/thread_info.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index ec0fcbe739ec..414895e923f5 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -93,7 +93,6 @@ struct thread_info {
 #define TIF_NOTSC		16	/* TSC is not accessible in userland */
 #define TIF_NOTIFY_SIGNAL	17	/* signal notifications exist */
 #define TIF_SLD			18	/* Restore split lock detection on context switch */
-#define TIF_NOTIFY_SIGNAL	19	/* signal notifications exist */
 #define TIF_MEMDIE		20	/* is terminating due to OOM killer */
 #define TIF_POLLING_NRFLAG	21	/* idle is polling for TIF_NEED_RESCHED */
 #define TIF_IO_BITMAP		22	/* uses I/O bitmap */
-- 
2.28.0

-- 
Cheers,
Stephen Rothwell

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