diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 27 | ||||
| -rw-r--r-- | lib/fault-inject.c | 3 | ||||
| -rw-r--r-- | lib/swiotlb.c | 1 | ||||
| -rw-r--r-- | lib/vsprintf.c | 11 |
4 files changed, 22 insertions, 20 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 9a287796da8..ee05b8a061b 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -86,23 +86,6 @@ config DEBUG_SHIRQ Drivers ought to be able to handle interrupts coming in at those points; some don't and need to be caught. -config LOG_BUF_SHIFT - int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" if DEBUG_KERNEL - range 12 21 - default 17 if S390 || LOCKDEP - default 16 if X86_NUMAQ || IA64 - default 15 if SMP - default 14 - help - Select kernel log buffer size as a power of 2. - Defaults and Examples: - 17 => 128 KB for S/390 - 16 => 64 KB for x86 NUMAQ or IA-64 - 15 => 32 KB for SMP - 14 => 16 KB for uniprocessor - 13 => 8 KB - 12 => 4 KB - config DETECT_SOFTLOCKUP bool "Detect Soft Lockups" depends on DEBUG_KERNEL && !S390 @@ -201,6 +184,16 @@ config DEBUG_MUTEXES This feature allows mutex semantics violations to be detected and reported. +config DEBUG_SEMAPHORE + bool "Semaphore debugging" + depends on DEBUG_KERNEL + depends on ALPHA || FRV + default n + help + If you say Y here then semaphore processing will issue lots of + verbose debugging messages. If you suspect a semaphore problem or a + kernel hacker asks for this option then say Y. Otherwise say N. + config DEBUG_LOCK_ALLOC bool "Lock debugging: detect incorrect freeing of live locks" depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT diff --git a/lib/fault-inject.c b/lib/fault-inject.c index 0fabd12c39d..b18fc2ff9ff 100644 --- a/lib/fault-inject.c +++ b/lib/fault-inject.c @@ -72,9 +72,8 @@ static bool fail_stacktrace(struct fault_attr *attr) trace.entries = entries; trace.max_entries = depth; trace.skip = 1; - trace.all_contexts = 0; - save_stack_trace(&trace, NULL); + save_stack_trace(&trace); for (n = 0; n < trace.nr_entries; n++) { if (attr->reject_start <= entries[n] && entries[n] < attr->reject_end) diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 9970e55c90b..10c13ad0d82 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -778,7 +778,6 @@ swiotlb_dma_supported(struct device *hwdev, u64 mask) return virt_to_bus(io_tlb_end - 1) <= mask; } -EXPORT_SYMBOL(swiotlb_init); EXPORT_SYMBOL(swiotlb_map_single); EXPORT_SYMBOL(swiotlb_unmap_single); EXPORT_SYMBOL(swiotlb_map_sg); diff --git a/lib/vsprintf.c b/lib/vsprintf.c index cbab1df150c..01729024126 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -825,6 +825,17 @@ int vsscanf(const char * buf, const char * fmt, va_list args) break; str = next; } + + /* + * Now we've come all the way through so either the input string or the + * format ended. In the former case, there can be a %n at the current + * position in the format that needs to be filled. + */ + if (*fmt == '%' && *(fmt + 1) == 'n') { + int *p = (int *)va_arg(args, int *); + *p = str - buf; + } + return num; } |