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From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: linux-arm-kernel@lists.infradead.org, kasan-dev@googlegroups.com,
	linux-kernel@vger.kernel.org
Subject: linux-next 20201126 - build error on arm allmodconfig
Date: Thu, 26 Nov 2020 08:25:02 -0500	[thread overview]
Message-ID: <24105.1606397102@turing-police> (raw)


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Seems something is giving it indigestion regarding asmlinkage...

  CC      arch/arm/mm/kasan_init.o
In file included from ./include/linux/kasan.h:15,
                 from arch/arm/mm/kasan_init.c:11:
./arch/arm/include/asm/kasan.h:26:11: error: expected ';' before 'void'
 asmlinkage void kasan_early_init(void);
           ^~~~~
           ;
make[2]: *** [scripts/Makefile.build:283: arch/arm/mm/kasan_init.o] Error 1
make[1]: *** [scripts/Makefile.build:500: arch/arm/mm] Error 2
make: *** [Makefile:1803: arch/arm] Error 2

Git bisect points at:

commit 2df573d2ca4c1ce6ea33cb7849222f771e759211
Author: Andrey Konovalov <andreyknvl@google.com>
Date:   Tue Nov 24 16:45:08 2020 +1100

    kasan: shadow declarations only for software modes

Looks like it's this chunk:

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 59538e795df4..26f2ab92e7ca 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -11,7 +11,6 @@ struct task_struct;

 #ifdef CONFIG_KASAN

-#include <linux/pgtable.h>
 #include <asm/kasan.h>

Testing shows putting that #include back in makes it compile correctly,
but it's not obvious why putting that back makes 'asmlinkage' recognized.

"You are in a twisty little maze of #includes, all different"... :)

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WARNING: multiple messages have this Message-ID (diff)
From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: kasan-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: linux-next 20201126 - build error on arm allmodconfig
Date: Thu, 26 Nov 2020 08:25:02 -0500	[thread overview]
Message-ID: <24105.1606397102@turing-police> (raw)

[-- Attachment #1: Type: text/plain, Size: 1258 bytes --]

Seems something is giving it indigestion regarding asmlinkage...

  CC      arch/arm/mm/kasan_init.o
In file included from ./include/linux/kasan.h:15,
                 from arch/arm/mm/kasan_init.c:11:
./arch/arm/include/asm/kasan.h:26:11: error: expected ';' before 'void'
 asmlinkage void kasan_early_init(void);
           ^~~~~
           ;
make[2]: *** [scripts/Makefile.build:283: arch/arm/mm/kasan_init.o] Error 1
make[1]: *** [scripts/Makefile.build:500: arch/arm/mm] Error 2
make: *** [Makefile:1803: arch/arm] Error 2

Git bisect points at:

commit 2df573d2ca4c1ce6ea33cb7849222f771e759211
Author: Andrey Konovalov <andreyknvl@google.com>
Date:   Tue Nov 24 16:45:08 2020 +1100

    kasan: shadow declarations only for software modes

Looks like it's this chunk:

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 59538e795df4..26f2ab92e7ca 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -11,7 +11,6 @@ struct task_struct;

 #ifdef CONFIG_KASAN

-#include <linux/pgtable.h>
 #include <asm/kasan.h>

Testing shows putting that #include back in makes it compile correctly,
but it's not obvious why putting that back makes 'asmlinkage' recognized.

"You are in a twisty little maze of #includes, all different"... :)

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             reply	other threads:[~2020-11-26 13:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-26 13:25 Valdis Klētnieks [this message]
2020-11-26 13:25 ` linux-next 20201126 - build error on arm allmodconfig Valdis Klētnieks
2020-11-26 14:14 ` Russell King - ARM Linux admin
2020-11-26 14:14   ` Russell King - ARM Linux admin
2020-11-26 14:18   ` Valdis Klētnieks
2020-11-26 14:18     ` Valdis Klētnieks
2020-11-26 14:22   ` Valdis Klētnieks
2020-11-26 14:22     ` Valdis Klētnieks
2020-11-26 14:32     ` Russell King - ARM Linux admin
2020-11-26 14:32       ` Russell King - ARM Linux admin

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