diff options
author | David Brown <davidb@codeaurora.org> | 2011-03-17 01:13:16 -0400 |
---|---|---|
committer | David Brown <davidb@codeaurora.org> | 2011-03-17 01:13:16 -0400 |
commit | 92c260f755c42337c550d8ac1f8ccd1b32bffb20 (patch) | |
tree | 6d04fefc1adeecabfb2b00c201e0db78fa2b5529 /include/linux/kernel.h | |
parent | 8e76a80960bf06c245160a484d5a363ca6b520bb (diff) | |
parent | 05e34754518b6a90d5c392790c032575fab12d66 (diff) |
Merge remote branch 'rmk/for-linus' into for-linus
* rmk/for-linus: (1557 commits)
ARM: 6806/1: irq: introduce entry and exit functions for chained handlers
ARM: 6781/1: Thumb-2: Work around buggy Thumb-2 short branch relocations in gas
ARM: 6747/1: P2V: Thumb2 support
ARM: 6798/1: aout-core: zero thread debug registers in a.out core dump
ARM: 6796/1: Footbridge: Fix I/O mappings for NOMMU mode
ARM: 6784/1: errata: no automatic Store Buffer drain on Cortex-A9
ARM: 6772/1: errata: possible fault MMU translations following an ASID switch
ARM: 6776/1: mach-ux500: activate fix for errata 753970
ARM: 6794/1: SPEAr: Append UL to device address macros.
ARM: 6793/1: SPEAr: Remove unused *_SIZE macros from spear*.h files
ARM: 6792/1: SPEAr: Replace SIZE macro's with SZ_4K macros
ARM: 6791/1: SPEAr3xx: Declare device structures after shirq code
ARM: 6790/1: SPEAr: Clock Framework: Rename usbd clock and align apb_clk entry
ARM: 6789/1: SPEAr3xx: Rename sdio to sdhci
ARM: 6788/1: SPEAr: Include mach/hardware.h instead of mach/spear.h
ARM: 6787/1: SPEAr: Reorder #includes in .h & .c files.
ARM: 6681/1: SPEAr: add debugfs support to clk API
ARM: 6703/1: SPEAr: update clk API support
ARM: 6679/1: SPEAr: make clk API functions more generic
ARM: 6737/1: SPEAr: formalized timer support
...
Conflicts:
arch/arm/mach-msm/board-msm7x27.c
arch/arm/mach-msm/board-msm7x30.c
arch/arm/mach-msm/board-qsd8x50.c
arch/arm/mach-msm/board-sapphire.c
arch/arm/mach-msm/include/mach/memory.h
Diffstat (limited to 'include/linux/kernel.h')
-rw-r--r-- | include/linux/kernel.h | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index d07d8057e440..2fe6e84894a4 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h | |||
@@ -575,12 +575,6 @@ struct sysinfo { | |||
575 | char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ | 575 | char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */ |
576 | }; | 576 | }; |
577 | 577 | ||
578 | /* Force a compilation error if condition is true */ | ||
579 | #define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition)) | ||
580 | |||
581 | /* Force a compilation error if condition is constant and true */ | ||
582 | #define MAYBE_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)])) | ||
583 | |||
584 | /* Force a compilation error if a constant expression is not a power of 2 */ | 578 | /* Force a compilation error if a constant expression is not a power of 2 */ |
585 | #define BUILD_BUG_ON_NOT_POWER_OF_2(n) \ | 579 | #define BUILD_BUG_ON_NOT_POWER_OF_2(n) \ |
586 | BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0)) | 580 | BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0)) |
@@ -592,6 +586,32 @@ struct sysinfo { | |||
592 | #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) | 586 | #define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); })) |
593 | #define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); })) | 587 | #define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); })) |
594 | 588 | ||
589 | /** | ||
590 | * BUILD_BUG_ON - break compile if a condition is true. | ||
591 | * @condition: the condition which the compiler should know is false. | ||
592 | * | ||
593 | * If you have some code which relies on certain constants being equal, or | ||
594 | * other compile-time-evaluated condition, you should use BUILD_BUG_ON to | ||
595 | * detect if someone changes it. | ||
596 | * | ||
597 | * The implementation uses gcc's reluctance to create a negative array, but | ||
598 | * gcc (as of 4.4) only emits that error for obvious cases (eg. not arguments | ||
599 | * to inline functions). So as a fallback we use the optimizer; if it can't | ||
600 | * prove the condition is false, it will cause a link error on the undefined | ||
601 | * "__build_bug_on_failed". This error message can be harder to track down | ||
602 | * though, hence the two different methods. | ||
603 | */ | ||
604 | #ifndef __OPTIMIZE__ | ||
605 | #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) | ||
606 | #else | ||
607 | extern int __build_bug_on_failed; | ||
608 | #define BUILD_BUG_ON(condition) \ | ||
609 | do { \ | ||
610 | ((void)sizeof(char[1 - 2*!!(condition)])); \ | ||
611 | if (condition) __build_bug_on_failed = 1; \ | ||
612 | } while(0) | ||
613 | #endif | ||
614 | |||
595 | /* Trap pasters of __FUNCTION__ at compile-time */ | 615 | /* Trap pasters of __FUNCTION__ at compile-time */ |
596 | #define __FUNCTION__ (__func__) | 616 | #define __FUNCTION__ (__func__) |
597 | 617 | ||