Thread (2 messages) 2 messages, 2 authors, 2014-03-17

[PATCH v2] MIPS: Fix syscall tracing interface

From: Lars Persson <lars.persson@axis.com>
Date: 2014-03-17 11:14:33
Subsystem: mips, the rest · Maintainers: Thomas Bogendoerfer, Linus Torvalds

Fix pointer computation for stack-based arguments.

Signed-off-by: Lars Persson <redacted>
---
 arch/mips/include/asm/syscall.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index c71e40a..6c488c8 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -51,14 +51,14 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
 
 #ifdef CONFIG_32BIT
 	case 4: case 5: case 6: case 7:
-		return get_user(*arg, (int *)usp + 4 * n);
+		return get_user(*arg, (int *)usp + n);
 #endif
 
 #ifdef CONFIG_64BIT
 	case 4: case 5: case 6: case 7:
 #ifdef CONFIG_MIPS32_O32
 		if (test_thread_flag(TIF_32BIT_REGS))
-			return get_user(*arg, (int *)usp + 4 * n);
+			return get_user(*arg, (int *)usp + n);
 		else
 #endif
 			*arg = regs->regs[4 + n];
-- 
1.7.2.5
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