From 3777808873b0c49c5cf27e44c948dfb02675d578 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 11 Jun 2012 14:29:58 +0900 Subject: bug.h: need linux/kernel.h for TAINT_WARN. asm-generic/bug.h uses taint flags that are only defined in linux/kernel.h, resulting in build failures on platforms that don't include linux/kernel.h some other way: arch/sh/include/asm/thread_info.h:172:2: error: 'TAINT_WARN' undeclared (first use in this function) Caused by commit edd63a2763bd ("set_restore_sigmask() is never called without SIGPENDING (and never should be)"). Reported-by: Stephen Rothwell Cc: Al Viro Signed-off-by: Paul Mundt --- include/asm-generic/bug.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/asm-generic/bug.h') diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 2520a6e241dc..9f02005f217a 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -2,6 +2,7 @@ #define _ASM_GENERIC_BUG_H #include +#include #ifdef CONFIG_BUG -- cgit v1.2.3 From 2603efa31a0377eeaa06723bded8a1d644dd4901 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 18 Jun 2012 13:54:17 +0900 Subject: bug.h: Fix up powerpc build regression. The asm-generic/bug.h __ASSEMBLY__ guarding is completely bogus, which tripped up the powerpc build when the kernel.h include was added: In file included from include/asm-generic/bug.h:5:0, from arch/powerpc/include/asm/bug.h:127, from arch/powerpc/kernel/head_64.S:31: include/linux/kernel.h:44:0: warning: "ALIGN" redefined [enabled by default] include/linux/linkage.h:57:0: note: this is the location of the previous definition include/linux/sysinfo.h: Assembler messages: include/linux/sysinfo.h:7: Error: Unrecognized opcode: `struct' include/linux/sysinfo.h:8: Error: Unrecognized opcode: `__kernel_long_t' Moving the __ASSEMBLY__ guard up and stashing the kernel.h include under it fixes this up, as well as covering the case the original fix was attempting to handle. Tested-by: Stephen Rothwell Acked-by: Arnd Bergmann Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- include/asm-generic/bug.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'include/asm-generic/bug.h') diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 9f02005f217a..506ec19a3736 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -2,7 +2,6 @@ #define _ASM_GENERIC_BUG_H #include -#include #ifdef CONFIG_BUG @@ -32,6 +31,9 @@ struct bug_entry { #endif /* CONFIG_GENERIC_BUG */ +#ifndef __ASSEMBLY__ +#include + /* * Don't use BUG() or BUG_ON() unless there's really no way out; one * example might be detecting data structure corruption in the middle @@ -61,7 +63,6 @@ struct bug_entry { * to provide better diagnostics. */ #ifndef __WARN_TAINT -#ifndef __ASSEMBLY__ extern __printf(3, 4) void warn_slowpath_fmt(const char *file, const int line, const char *fmt, ...); @@ -70,7 +71,6 @@ void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint, const char *fmt, ...); extern void warn_slowpath_null(const char *file, const int line); #define WANT_WARN_ON_SLOWPATH -#endif #define __WARN() warn_slowpath_null(__FILE__, __LINE__) #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg) #define __WARN_printf_taint(taint, arg...) \ @@ -203,4 +203,6 @@ extern void warn_slowpath_null(const char *file, const int line); # define WARN_ON_SMP(x) ({0;}) #endif +#endif /* __ASSEMBLY__ */ + #endif -- cgit v1.2.3 From 09682c1dd3820445a27d32dcbeee6a6eafff3dc9 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 25 Jun 2012 17:15:31 +0900 Subject: bug.h: Fix up CONFIG_BUG=n implicit function declarations. Commit 2603efa31a03 ("bug.h: Fix up powerpc build regression") corrected the powerpc build case and extended the __ASSEMBLY__ guards, but it also got caught in pre-processor hell accidentally matching the else case of CONFIG_BUG resulting in the BUG disabled case tripping up on -Werror=implicit-function-declaration. It's not possible to __ASSEMBLY__ guard the entire file as architecture code needs to get at the BUGFLAG_WARNING definition in the GENERIC_BUG case, but the rest of the CONFIG_BUG=y/n case needs to be guarded. Rather than littering endless __ASSEMBLY__ checks in each of the if/else cases we just move the BUGFLAG definitions up under their own GENERIC_BUG test and then shove everything else under one big __ASSEMBLY__ guard. Build tested on all of x86 CONFIG_BUG=y, CONFIG_BUG=n, powerpc (due to it's dependence on BUGFLAG definitions in assembly code), and sh (due to not bringing in linux/kernel.h to satisfy the taint flag definitions used by the generic bug code). Hopefully that's the end of the corner cases and I can abstain from ever having to touch this infernal header ever again. Reported-by: Fengguang Wu Tested-by: Fengguang Wu Acked-by: Randy Dunlap Cc: Arnd Bergmann Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- include/asm-generic/bug.h | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) (limited to 'include/asm-generic/bug.h') diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 506ec19a3736..7d10f962aa13 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -3,10 +3,18 @@ #include +#ifdef CONFIG_GENERIC_BUG +#define BUGFLAG_WARNING (1 << 0) +#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8)) +#define BUG_GET_TAINT(bug) ((bug)->flags >> 8) +#endif + +#ifndef __ASSEMBLY__ +#include + #ifdef CONFIG_BUG #ifdef CONFIG_GENERIC_BUG -#ifndef __ASSEMBLY__ struct bug_entry { #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS unsigned long bug_addr; @@ -23,17 +31,8 @@ struct bug_entry { #endif unsigned short flags; }; -#endif /* __ASSEMBLY__ */ - -#define BUGFLAG_WARNING (1 << 0) -#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8)) -#define BUG_GET_TAINT(bug) ((bug)->flags >> 8) - #endif /* CONFIG_GENERIC_BUG */ -#ifndef __ASSEMBLY__ -#include - /* * Don't use BUG() or BUG_ON() unless there's really no way out; one * example might be detecting data structure corruption in the middle -- cgit v1.2.3