[PATCH] fix sparse warnings from {asm,net}/checksum.h

Rename the variable "sum" in the __range_ok macros to avoid name collisions
causing lots of "symbol shadows an earlier one" warnings by sparse.

Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Andi Kleen <ak@suse.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Acked-by: Ian Molton <spyro@f2s.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

5 files changed, 10 insertions, 10 deletions

diff --git a/include/asm-arm/uaccess.h b/include/asm-arm/uaccess.h
index 5f420a0149f1..c92df958802e 100644
--- a/include/asm-arm/uaccess.h
+++ b/include/asm-arm/uaccess.h
@@ -76,10 +76,10 @@ static inline void set_fs(mm_segment_t fs)
 
 /* We use 33-bit arithmetic here... */
 #define __range_ok(addr,size) ({ \
-        unsigned long flag, sum; \
+        unsigned long flag, roksum; \
         __chk_user_ptr(addr);   \
         __asm__("adds %1, %2, %3; sbcccs %1, %1, %0; movcc %0, #0" \
-                : "=&r" (flag), "=&r" (sum) \
+                : "=&r" (flag), "=&r" (roksum) \
                 : "r" (addr), "Ir" (size), "0" (current_thread_info()->addr_limit) \
                 : "cc"); \
         flag; })
diff --git a/include/asm-arm26/uaccess-asm.h b/include/asm-arm26/uaccess-asm.h
index 19f798e338c9..ade76ec02995 100644
--- a/include/asm-arm26/uaccess-asm.h
+++ b/include/asm-arm26/uaccess-asm.h
@@ -34,9 +34,9 @@ static inline void set_fs (mm_segment_t fs)
 }
 
 #define __range_ok(addr,size) ({                                        \
-        unsigned long flag, sum;                                        \
+        unsigned long flag, roksum;                                     \
         __asm__ __volatile__("subs %1, %0, %3; cmpcs %1, %2; movcs %0, #0" \
-                : "=&r" (flag), "=&r" (sum)                             \
+                : "=&r" (flag), "=&r" (roksum)                          \
                 : "r" (addr), "Ir" (size), "0" (current_thread_info()->addr_limit)      \
                 : "cc");                                                \
         flag; })
diff --git a/include/asm-i386/uaccess.h b/include/asm-i386/uaccess.h
index eef5133b9ce2..70829ae3ad52 100644
--- a/include/asm-i386/uaccess.h
+++ b/include/asm-i386/uaccess.h
@@ -54,10 +54,10 @@ extern struct movsl_mask {
  * This needs 33-bit arithmetic. We have a carry...
  */
 #define __range_ok(addr,size) ({ \
-        unsigned long flag,sum; \
+        unsigned long flag,roksum; \
         __chk_user_ptr(addr); \
         asm("addl %3,%1 ; sbbl %0,%0; cmpl %1,%4; sbbl $0,%0" \
-                :"=&r" (flag), "=r" (sum) \
+                :"=&r" (flag), "=r" (roksum) \
                 :"1" (addr),"g" ((int)(size)),"rm" (current_thread_info()->addr_limit.seg)); \
         flag; })
 
diff --git a/include/asm-m32r/uaccess.h b/include/asm-m32r/uaccess.h
index 26e978c7e3b4..bd8c83765a5c 100644
--- a/include/asm-m32r/uaccess.h
+++ b/include/asm-m32r/uaccess.h
@@ -68,7 +68,7 @@ static inline void set_fs(mm_segment_t s)
  * This needs 33-bit arithmetic. We have a carry...
  */
 #define __range_ok(addr,size) ({                                        \
-        unsigned long flag, sum;                                        \
+        unsigned long flag, roksum;                                     \
         __chk_user_ptr(addr);                                           \
         asm (                                                           \
                 "       cmpu    %1, %1    ; clear cbit\n"               \
@@ -76,7 +76,7 @@ static inline void set_fs(mm_segment_t s)
                 "       subx    %0, %0\n"                               \
                 "       cmpu    %4, %1\n"                               \
                 "       subx    %0, %5\n"                               \
-                : "=&r" (flag), "=r" (sum)                              \
+                : "=&r" (flag), "=r" (roksum)                           \
                 : "1" (addr), "r" ((int)(size)),                        \
                   "r" (current_thread_info()->addr_limit.seg), "r" (0)  \
                 : "cbit" );                                             \
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h
index c0eac519840b..8079e29c14fd 100644
--- a/include/asm-x86_64/uaccess.h
+++ b/include/asm-x86_64/uaccess.h
@@ -37,11 +37,11 @@
  * Uhhuh, this needs 65-bit arithmetic. We have a carry..
  */
 #define __range_not_ok(addr,size) ({ \
-        unsigned long flag,sum; \
+        unsigned long flag,roksum; \
         __chk_user_ptr(addr); \
         asm("# range_ok\n\r" \
                 "addq %3,%1 ; sbbq %0,%0 ; cmpq %1,%4 ; sbbq $0,%0"  \
-                :"=&r" (flag), "=r" (sum) \
+                :"=&r" (flag), "=r" (roksum) \
                 :"1" (addr),"g" ((long)(size)),"g" (current_thread_info()->addr_limit.seg)); \
         flag; })