* [patch 1/3] bug.h: Remove HAVE_ARCH_BUG and HAVE_ARCH_WARN
[not found] <20080117010130.GA24663@lixom.net>
@ 2008-01-17 1:08 ` Olof Johansson
2008-01-17 8:36 ` Russell King
2008-01-17 1:09 ` [patch 2/3] [POWERPC] switch to generic WARN_ON / BUG_ON Olof Johansson
1 sibling, 1 reply; 3+ messages in thread
From: Olof Johansson @ 2008-01-17 1:08 UTC (permalink / raw)
To: linux-kernel; +Cc: Andrew Morton, Arjan van de Ven, linux-arch
No need to have the HAVE_ARCH_BUG.* / HAVE_ARCH_WARN.* defines, when
the generic implementation can just use #ifndef on the macros themselves.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: <linux-arch@vger.kernel.org>
---
include/asm-alpha/bug.h | 1 -
include/asm-arm/bug.h | 1 -
include/asm-avr32/bug.h | 3 ---
include/asm-frv/bug.h | 1 -
include/asm-generic/bug.h | 10 +++++-----
include/asm-ia64/bug.h | 1 -
include/asm-m68k/bug.h | 1 -
include/asm-mips/bug.h | 4 ----
include/asm-parisc/bug.h | 2 --
include/asm-powerpc/bug.h | 3 ---
include/asm-s390/bug.h | 2 --
include/asm-sparc/bug.h | 1 -
include/asm-sparc64/bug.h | 1 -
include/asm-v850/bug.h | 1 -
include/asm-x86/bug.h | 1 -
15 files changed, 5 insertions(+), 28 deletions(-)
Index: linux-2.6.24-rc6/include/asm-alpha/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-alpha/bug.h
+++ linux-2.6.24-rc6/include/asm-alpha/bug.h
@@ -10,7 +10,6 @@
__asm__ __volatile__("call_pal %0 # bugchk\n\t"".long %1\n\t.8byte %2" \
: : "i" (PAL_bugchk), "i"(__LINE__), "i"(__FILE__))
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-arm/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-arm/bug.h
+++ linux-2.6.24-rc6/include/asm-arm/bug.h
@@ -16,7 +16,6 @@ extern void __bug(const char *file, int
#endif
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-avr32/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-avr32/bug.h
+++ linux-2.6.24-rc6/include/asm-avr32/bug.h
@@ -63,9 +63,6 @@
unlikely(__ret_warn_on); \
})
-#define HAVE_ARCH_BUG
-#define HAVE_ARCH_WARN_ON
-
#endif /* CONFIG_BUG */
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-frv/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-frv/bug.h
+++ linux-2.6.24-rc6/include/asm-frv/bug.h
@@ -32,7 +32,6 @@ do { \
asm volatile("nop"); \
} while(0)
-#define HAVE_ARCH_BUG
#define BUG() \
do { \
_debug_bug_printk(); \
Index: linux-2.6.24-rc6/include/asm-generic/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-generic/bug.h
+++ linux-2.6.24-rc6/include/asm-generic/bug.h
@@ -20,14 +20,14 @@ struct bug_entry {
#define BUGFLAG_WARNING (1<<0)
#endif /* CONFIG_GENERIC_BUG */
-#ifndef HAVE_ARCH_BUG
+#ifndef BUG
#define BUG() do { \
printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
panic("BUG!"); \
} while (0)
#endif
-#ifndef HAVE_ARCH_BUG_ON
+#ifndef BUG_ON
#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)
#endif
@@ -49,15 +49,15 @@ extern void warn_on_slowpath(const char
#endif
#else /* !CONFIG_BUG */
-#ifndef HAVE_ARCH_BUG
+#ifndef BUG
#define BUG()
#endif
-#ifndef HAVE_ARCH_BUG_ON
+#ifndef BUG_ON
#define BUG_ON(condition) do { if (condition) ; } while(0)
#endif
-#ifndef HAVE_ARCH_WARN_ON
+#ifndef WARN_ON
#define WARN_ON(condition) ({ \
int __ret_warn_on = !!(condition); \
unlikely(__ret_warn_on); \
Index: linux-2.6.24-rc6/include/asm-ia64/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-ia64/bug.h
+++ linux-2.6.24-rc6/include/asm-ia64/bug.h
@@ -6,7 +6,6 @@
#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); ia64_abort(); } while (0)
/* should this BUG be made generic? */
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-m68k/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-m68k/bug.h
+++ linux-2.6.24-rc6/include/asm-m68k/bug.h
@@ -21,7 +21,6 @@
} while (0)
#endif
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-mips/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-mips/bug.h
+++ linux-2.6.24-rc6/include/asm-mips/bug.h
@@ -12,8 +12,6 @@ do { \
__asm__ __volatile__("break %0" : : "i" (BRK_BUG)); \
} while (0)
-#define HAVE_ARCH_BUG
-
#if (_MIPS_ISA > _MIPS_ISA_MIPS1)
#define BUG_ON(condition) \
@@ -22,8 +20,6 @@ do { \
: : "r" (condition), "i" (BRK_BUG)); \
} while (0)
-#define HAVE_ARCH_BUG_ON
-
#endif /* _MIPS_ISA > _MIPS_ISA_MIPS1 */
#endif
Index: linux-2.6.24-rc6/include/asm-parisc/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-parisc/bug.h
+++ linux-2.6.24-rc6/include/asm-parisc/bug.h
@@ -7,8 +7,6 @@
*/
#ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
-#define HAVE_ARCH_WARN_ON
/* the break instruction is used as BUG() marker. */
#define PARISC_BUG_BREAK_ASM "break 0x1f, 0x1fff"
Index: linux-2.6.24-rc6/include/asm-powerpc/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-powerpc/bug.h
+++ linux-2.6.24-rc6/include/asm-powerpc/bug.h
@@ -109,9 +109,6 @@
unlikely(__ret_warn_on); \
})
-#define HAVE_ARCH_BUG
-#define HAVE_ARCH_BUG_ON
-#define HAVE_ARCH_WARN_ON
#endif /* __ASSEMBLY __ */
#endif /* CONFIG_BUG */
Index: linux-2.6.24-rc6/include/asm-s390/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-s390/bug.h
+++ linux-2.6.24-rc6/include/asm-s390/bug.h
@@ -61,8 +61,6 @@
unlikely(__ret_warn_on); \
})
-#define HAVE_ARCH_BUG
-#define HAVE_ARCH_WARN_ON
#endif /* CONFIG_BUG */
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-sparc/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-sparc/bug.h
+++ linux-2.6.24-rc6/include/asm-sparc/bug.h
@@ -26,7 +26,6 @@ extern void do_BUG(const char *file, int
#define BUG() __bug_trap()
#endif
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-sparc64/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-sparc64/bug.h
+++ linux-2.6.24-rc6/include/asm-sparc64/bug.h
@@ -14,7 +14,6 @@ extern void do_BUG(const char *file, int
#define BUG() __builtin_trap()
#endif
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-v850/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-v850/bug.h
+++ linux-2.6.24-rc6/include/asm-v850/bug.h
@@ -17,7 +17,6 @@
#ifdef CONFIG_BUG
extern void __bug (void) __attribute__ ((noreturn));
#define BUG() __bug()
-#define HAVE_ARCH_BUG
#endif
#include <asm-generic/bug.h>
Index: linux-2.6.24-rc6/include/asm-x86/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-x86/bug.h
+++ linux-2.6.24-rc6/include/asm-x86/bug.h
@@ -2,7 +2,6 @@
#define _ASM_X86_BUG_H
#ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
#ifdef CONFIG_DEBUG_BUGVERBOSE
^ permalink raw reply [flat|nested] 3+ messages in thread* [patch 2/3] [POWERPC] switch to generic WARN_ON / BUG_ON
[not found] <20080117010130.GA24663@lixom.net>
2008-01-17 1:08 ` [patch 1/3] bug.h: Remove HAVE_ARCH_BUG and HAVE_ARCH_WARN Olof Johansson
@ 2008-01-17 1:09 ` Olof Johansson
1 sibling, 0 replies; 3+ messages in thread
From: Olof Johansson @ 2008-01-17 1:09 UTC (permalink / raw)
To: linux-kernel; +Cc: Andrew Morton, Arjan van de Ven, linux-arch, paulus
Not using the ppc-specific WARN_ON/BUG_ON constructs actually saves about
4K text on a ppc64_defconfig. The main reason seems to be that prepping
the arguments to the conditional trap instructions is more work than just
doing a compare and branch.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: <linux-arch@vger.kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
---
include/asm-powerpc/bug.h | 37 -------------------------------------
1 file changed, 37 deletions(-)
Index: linux-2.6.24-rc6/include/asm-powerpc/bug.h
===================================================================
--- linux-2.6.24-rc6.orig/include/asm-powerpc/bug.h
+++ linux-2.6.24-rc6/include/asm-powerpc/bug.h
@@ -54,12 +54,6 @@
".previous\n"
#endif
-/*
- * BUG_ON() and WARN_ON() do their best to cooperate with compile-time
- * optimisations. However depending on the complexity of the condition
- * some compiler versions may not produce optimal results.
- */
-
#define BUG() do { \
__asm__ __volatile__( \
"1: twi 31,0,0\n" \
@@ -69,20 +63,6 @@
for(;;) ; \
} while (0)
-#define BUG_ON(x) do { \
- if (__builtin_constant_p(x)) { \
- if (x) \
- BUG(); \
- } else { \
- __asm__ __volatile__( \
- "1: "PPC_TLNEI" %4,0\n" \
- _EMIT_BUG_ENTRY \
- : : "i" (__FILE__), "i" (__LINE__), "i" (0), \
- "i" (sizeof(struct bug_entry)), \
- "r" ((__force long)(x))); \
- } \
-} while (0)
-
#define __WARN() do { \
__asm__ __volatile__( \
"1: twi 31,0,0\n" \
@@ -92,23 +72,6 @@
"i" (sizeof(struct bug_entry))); \
} while (0)
-#define WARN_ON(x) ({ \
- int __ret_warn_on = !!(x); \
- if (__builtin_constant_p(__ret_warn_on)) { \
- if (__ret_warn_on) \
- __WARN(); \
- } else { \
- __asm__ __volatile__( \
- "1: "PPC_TLNEI" %4,0\n" \
- _EMIT_BUG_ENTRY \
- : : "i" (__FILE__), "i" (__LINE__), \
- "i" (BUGFLAG_WARNING), \
- "i" (sizeof(struct bug_entry)), \
- "r" (__ret_warn_on)); \
- } \
- unlikely(__ret_warn_on); \
-})
-
#endif /* __ASSEMBLY __ */
#endif /* CONFIG_BUG */
^ permalink raw reply [flat|nested] 3+ messages in thread