linux-kernel - [PATCH 2/3] ARM: Remove orphaned __addr

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Date:	Tue, 24 May 2016 18:55:41 +0100
From:	Robin Murphy <robin.murphy@....com>
To:	linux@...linux.org.uk
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] ARM: Remove orphaned __addr_ok() definition

Since commit 8c56cc8be5b3 ("ARM: 7449/1: use generic strnlen_user and
strncpy_from_user functions"), the definition of __addr_ok() has been
languishing unused; eradicate the sucker.

CC: Russell King <linux@...linux.org.uk>
Signed-off-by: Robin Murphy <robin.murphy@....com>
---
 arch/arm/include/asm/uaccess.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 35c9db857ebe..7badc3e55109 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -104,14 +104,6 @@ static inline void set_fs(mm_segment_t fs)
 
 #define segment_eq(a, b)	((a) == (b))
 
-#define __addr_ok(addr) ({ \
-	unsigned long flag; \
-	__asm__("cmp %2, %0; movlo %0, #0" \
-		: "=&r" (flag) \
-		: "0" (current_thread_info()->addr_limit), "r" (addr) \
-		: "cc"); \
-	(flag == 0); })
-
 /* We use 33-bit arithmetic here... */
 #define __range_ok(addr, size) ({ \
 	unsigned long flag, roksum; \
-- 
2.8.1.dirty