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Date: Wed, 7 Jan 2015 00:10:18 +0200
From: "Michael S. Tsirkin" <mst@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Sam Ravnborg <sam@...nborg.org>,
"David S. Miller" <davem@...emloft.net>, sparclinux@...r.kernel.org
Subject: [PATCH] sparc32: nocheck uaccess coding style tweaks
Sam Ravnborg suggested packing single-lines cases in switch statements
in nocheck uaccess macros makes for easier to read code.
Suggested-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: Michael S. Tsirkin <mst@...hat.com>
---
This is on top of coding style fixes that David already acked.
Sam - you only commented on uaccess_64 but I'm guessing same thing
applies to uaccess_32?
arch/sparc/include/asm/uaccess_32.h | 96 ++++++++++++++-----------------------
1 file changed, 35 insertions(+), 61 deletions(-)
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index f966562..64ee103 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -142,24 +142,14 @@ struct __large_struct { unsigned long buf[100]; };
__pu_ret; \
})
-#define __put_user_nocheck(x, addr, size) ({ \
- register int __pu_ret; \
- switch (size) { \
- case 1: \
- __put_user_asm(x, b, addr, __pu_ret); \
- break; \
- case 2: \
- __put_user_asm(x, h, addr, __pu_ret); \
- break; \
- case 4: \
- __put_user_asm(x, , addr, __pu_ret); \
- break; \
- case 8: \
- __put_user_asm(x, d, addr, __pu_ret); \
- break; \
- default: \
- __pu_ret = __put_user_bad(); \
- break; \
+#define __put_user_nocheck(x, addr, size) ({ \
+ register int __pu_ret; \
+ switch (size) { \
+ case 1: __put_user_asm(x, b, addr, __pu_ret); break; \
+ case 2: __put_user_asm(x, h, addr, __pu_ret); break; \
+ case 4: __put_user_asm(x, , addr, __pu_ret); break; \
+ case 8: __put_user_asm(x, d, addr, __pu_ret); break; \
+ default: __pu_ret = __put_user_bad(); break; \
} \
__pu_ret; \
})
@@ -240,51 +230,35 @@ int __put_user_bad(void);
return retval; \
})
-#define __get_user_nocheck(x, addr, size, type) ({ \
- register int __gu_ret; \
- register unsigned long __gu_val; \
- switch (size) { \
- case 1: \
- __get_user_asm(__gu_val, ub, addr, __gu_ret); \
- break; \
- case 2: \
- __get_user_asm(__gu_val, uh, addr, __gu_ret); \
- break; \
- case 4: \
- __get_user_asm(__gu_val, , addr, __gu_ret); \
- break; \
- case 8: \
- __get_user_asm(__gu_val, d, addr, __gu_ret); \
- break; \
- default: \
- __gu_val = 0; \
- __gu_ret = __get_user_bad(); \
- break; \
- } \
- x = (__force type) __gu_val; \
- __gu_ret; \
+#define __get_user_nocheck(x, addr, size, type) ({ \
+ register int __gu_ret; \
+ register unsigned long __gu_val; \
+ switch (size) { \
+ case 1: __get_user_asm(__gu_val, ub, addr, __gu_ret); break; \
+ case 2: __get_user_asm(__gu_val, uh, addr, __gu_ret); break; \
+ case 4: __get_user_asm(__gu_val, , addr, __gu_ret); break; \
+ case 8: __get_user_asm(__gu_val, d, addr, __gu_ret); break; \
+ default: \
+ __gu_val = 0; \
+ __gu_ret = __get_user_bad(); \
+ break; \
+ } \
+ x = (__force type) __gu_val; \
+ __gu_ret; \
})
-#define __get_user_nocheck_ret(x, addr, size, type, retval) ({ \
- register unsigned long __gu_val __asm__ ("l1"); \
- switch (size) { \
- case 1: \
- __get_user_asm_ret(__gu_val, ub, addr, retval); \
- break; \
- case 2: \
- __get_user_asm_ret(__gu_val, uh, addr, retval); \
- break; \
- case 4: \
- __get_user_asm_ret(__gu_val, , addr, retval); \
- break; \
- case 8: \
- __get_user_asm_ret(__gu_val, d, addr, retval); \
- break; \
- default: \
- if (__get_user_bad()) \
- return retval; \
- } \
- x = (__force type) __gu_val; \
+#define __get_user_nocheck_ret(x, addr, size, type, retval) ({ \
+ register unsigned long __gu_val __asm__ ("l1"); \
+ switch (size) { \
+ case 1: __get_user_asm_ret(__gu_val, ub, addr, retval); break; \
+ case 2: __get_user_asm_ret(__gu_val, uh, addr, retval); break; \
+ case 4: __get_user_asm_ret(__gu_val, , addr, retval); break; \
+ case 8: __get_user_asm_ret(__gu_val, d, addr, retval); break; \
+ default: \
+ if (__get_user_bad()) \
+ return retval; \
+ } \
+ x = (__force type) __gu_val; \
})
#define __get_user_asm(x, size, addr, ret) \
--
MST
--
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