diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/iotrace.h | 24 | ||||
| -rw-r--r-- | include/linux/bug.h | 18 |
2 files changed, 42 insertions, 0 deletions
diff --git a/include/iotrace.h b/include/iotrace.h index 9fe5733f87..1efb117343 100644 --- a/include/iotrace.h +++ b/include/iotrace.h @@ -59,6 +59,30 @@ void iotrace_reset_checksum(void); u32 iotrace_get_checksum(void); /** + * iotrace_set_region() - Set whether iotrace is limited to a specific + * io region. + * + * Defines the address and size of the limited region. + * + * @start: address of the beginning of the region + * @size: size of the region in bytes. + */ +void iotrace_set_region(ulong start, ulong size); + +/** + * iotrace_reset_region() - Reset the region limit + */ +void iotrace_reset_region(void); + +/** + * iotrace_get_region() - Get region information + * + * @start: Returns start address of region + * @size: Returns size of region in bytes + */ +void iotrace_get_region(ulong *start, ulong *size); + +/** * iotrace_set_enabled() - Set whether iotracing is enabled or not * * This controls whether the checksum is updated and a trace record added diff --git a/include/linux/bug.h b/include/linux/bug.h index f07bb716fc..29f84168a3 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -20,6 +20,13 @@ unlikely(__ret_warn_on); \ }) +#define WARN(condition, format...) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + printf(format); \ + unlikely(__ret_warn_on); \ +}) + #define WARN_ON_ONCE(condition) ({ \ static bool __warned; \ int __ret_warn_once = !!(condition); \ @@ -31,4 +38,15 @@ unlikely(__ret_warn_once); \ }) +#define WARN_ONCE(condition, format...) ({ \ + static bool __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once && !__warned)) { \ + __warned = true; \ + WARN(1, format); \ + } \ + unlikely(__ret_warn_once); \ +}) + #endif /* _LINUX_BUG_H */ |