Thread (40 messages) 40 messages, 10 authors, 2021-09-22
STALE1678d
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 4/4] alpha: Use absolute_pointer to define COMMAND_LINE

From: Guenter Roeck <linux@roeck-us.net>
Date: 2021-09-15 03:53:06
Also in: linux-alpha, lkml
Subsystem: alpha port, the rest · Maintainers: Richard Henderson, Matt Turner, Magnus Lindholm, Linus Torvalds

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
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