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From: Guenter Roeck <linux@roeck-us.net>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Richard Henderson <rth@twiddle.net>,
	Ivan Kokshaysky <ink@jurassic.park.msu.ru>,
	Matt Turner <mattst88@gmail.com>,
	"James E . J . Bottomley" <James.Bottomley@HansenPartnership.com>,
	Helge Deller <deller@gmx.de>,
	"David S . Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-alpha@vger.kernel.org,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-kernel@vger.kernel.org, linux-parisc@vger.kernel.org,
	netdev@vger.kernel.org, linux-sparse@vger.kernel.org,
	Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH v2 4/4] alpha: Use absolute_pointer to define COMMAND_LINE
Date: Tue, 14 Sep 2021 20:52:27 -0700	[thread overview]
Message-ID: <20210915035227.630204-5-linux@roeck-us.net> (raw)
In-Reply-To: <20210915035227.630204-1-linux@roeck-us.net>

alpha:allmodconfig fails to build with the following error
when using gcc 11.x.

arch/alpha/kernel/setup.c: In function 'setup_arch':
arch/alpha/kernel/setup.c:493:13: error:
	'strcmp' reading 1 or more bytes from a region of size 0

Avoid the problem by declaring COMMAND_LINE as absolute_pointer().

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
v2: Declare COMMAND_LINE as absolute_pointer instead of using absolute_pointer
    on the define

 arch/alpha/include/asm/setup.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/include/asm/setup.h b/arch/alpha/include/asm/setup.h
index 58fe3f45a235..262aab99e391 100644
--- a/arch/alpha/include/asm/setup.h
+++ b/arch/alpha/include/asm/setup.h
@@ -36,7 +36,7 @@
  * place.
  */
 #define PARAM			ZERO_PGE
-#define COMMAND_LINE		((char *)(PARAM + 0x0000))
+#define COMMAND_LINE		((char *)(absolute_pointer(PARAM + 0x0000)))
 #define INITRD_START		(*(unsigned long *) (PARAM+0x100))
 #define INITRD_SIZE		(*(unsigned long *) (PARAM+0x108))
 
-- 
2.33.0


  parent reply	other threads:[~2021-09-15  3:53 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-15  3:52 [PATCH v2 0/4] Introduce and use absolute_pointer macro Guenter Roeck
2021-09-15  3:52 ` [PATCH v2 1/4] compiler.h: Introduce " Guenter Roeck
2021-09-15  7:07   ` Geert Uytterhoeven
2021-09-15  7:13   ` Geert Uytterhoeven
2021-09-15  7:13     ` Geert Uytterhoeven
2021-09-15 14:03     ` Guenter Roeck
2021-09-15 14:03       ` Guenter Roeck
2021-09-15  3:52 ` [PATCH v2 2/4] net: i825xx: Use absolute_pointer for memcpy from fixed memory location Guenter Roeck
2021-09-15  7:08   ` Geert Uytterhoeven
2021-09-15  3:52 ` [PATCH v2 3/4] alpha: Move setup.h out of uapi Guenter Roeck
2021-09-15  3:52 ` Guenter Roeck [this message]
2021-09-15 19:18 ` [PATCH v2 0/4] Introduce and use absolute_pointer macro Linus Torvalds
2021-09-15 19:35   ` Guenter Roeck
2021-09-15 19:47     ` Linus Torvalds
2021-09-15 19:50       ` Linus Torvalds
2021-09-15 21:19         ` Linus Torvalds
2021-09-16  7:02           ` Anders Larsen
2021-09-16 16:25             ` Linus Torvalds
2021-09-15 20:30       ` Helge Deller
2021-09-15 22:33       ` Guenter Roeck
2021-09-16 18:35         ` Linus Torvalds
2021-09-18  9:51           ` Michael Cree
2021-09-18 13:11             ` Ulrich Teichert
2021-09-18 13:11               ` Ulrich Teichert
2021-09-18 17:04               ` Linus Torvalds
2021-09-18 17:17                 ` Thorsten Glaser
2021-09-18 17:21                   ` Linus Torvalds
2021-09-18 17:28                 ` Linus Torvalds
2021-09-18 20:26                 ` Ulrich Teichert
2021-09-18 20:26                   ` Ulrich Teichert
2021-09-18 20:46                   ` Linus Torvalds
2021-09-18 21:12                     ` Linus Torvalds
2021-09-18 22:09                   ` Linus Torvalds
2021-09-19 15:13                     ` Dave Taht
2021-09-19 15:13                       ` Dave Taht
2021-09-20 18:25                     ` Ulrich Teichert
2021-09-20 18:25                       ` Ulrich Teichert
2021-09-20 18:46                       ` Linus Torvalds
2021-09-20 18:59                         ` Matt Turner
2021-09-20 19:45                           ` Linus Torvalds
2021-09-21 19:13                         ` Ulrich Teichert
2021-09-21 19:13                           ` Ulrich Teichert
2021-09-21 20:42                           ` Linus Torvalds
2021-09-21 21:39                           ` Linus Torvalds
2021-09-22 20:50                             ` Ulrich Teichert
2021-09-22 20:50                               ` Ulrich Teichert
2021-09-23 19:57                               ` Newer kernels on the Jensen (was: [PATCH v2 0/4] Introduce and use absolute_pointer macro) Ulrich Teichert
2021-09-25 21:01                                 ` John Paul Adrian Glaubitz
2021-09-26 11:26                                   ` Newer kernels on the Jensen (was: [PATCH v2 0/4] Introduce and Ulrich Teichert
2021-09-26 11:35                                     ` John Paul Adrian Glaubitz
2021-09-26 11:55                                       ` John Paul Adrian Glaubitz
2021-09-26 17:12                                         ` Ulrich Teichert
2021-09-26 17:16                                           ` John Paul Adrian Glaubitz
2021-10-02 15:30                                             ` John Paul Adrian Glaubitz
2021-10-18 15:37                                     ` John Paul Adrian Glaubitz
2021-10-19 19:46                                       ` Ulrich Teichert
2021-10-22  8:46                                         ` John Paul Adrian Glaubitz
2021-10-24  3:41                                           ` Maciej W. Rozycki
2021-09-16 19:47         ` [PATCH v2 0/4] Introduce and use absolute_pointer macro Linus Torvalds
2021-09-16  0:34   ` Michael Cree

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