diff options
| author | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-01-03 12:14:04 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@s-opensource.com> | 2018-01-03 12:14:04 +0300 |
| commit | 3bdf481e39ff1d36c1f2e1b3862db2ac329b12cd (patch) | |
| tree | 91ad50553511f1cb4583edce10c16371f69fa7aa /include/linux/string.h | |
| parent | d0c8f6ad8b381dd572576ac50b9696d4d31142bb (diff) | |
| parent | 30a7acd573899fd8b8ac39236eff6468b195ac7d (diff) | |
| download | linux-3bdf481e39ff1d36c1f2e1b3862db2ac329b12cd.tar.xz | |
Merge tag 'v4.15-rc6' into patchwork
Linux 4.15-rc6
* tag 'v4.15-rc6': (734 commits)
Linux 4.15-rc6
MAINTAINERS: mark arch/blackfin/ and its gubbins as orphaned
x86/ldt: Make LDT pgtable free conditional
x86/ldt: Plug memory leak in error path
x86/mm: Remove preempt_disable/enable() from __native_flush_tlb()
x86/smpboot: Remove stale TLB flush invocations
objtool: Fix seg fault with clang-compiled objects
objtool: Fix seg fault caused by missing parameter
kbuild: add '-fno-stack-check' to kernel build options
timerqueue: Document return values of timerqueue_add/del()
timers: Invoke timer_start_debug() where it makes sense
nohz: Prevent a timer interrupt storm in tick_nohz_stop_sched_tick()
timers: Reinitialize per cpu bases on hotplug
timers: Use deferrable base independent of base::nohz_active
genirq/msi, x86/vector: Prevent reservation mode for non maskable MSI
genirq/irqdomain: Rename early argument of irq_domain_activate_irq()
x86/vector: Use IRQD_CAN_RESERVE flag
genirq: Introduce IRQD_CAN_RESERVE flag
genirq/msi: Handle reactivation only on success
gpio: brcmstb: Make really use of the new lockdep class
...
Diffstat (limited to 'include/linux/string.h')
| -rw-r--r-- | include/linux/string.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/string.h b/include/linux/string.h index 410ecf17de3c..cfd83eb2f926 100644 --- a/include/linux/string.h +++ b/include/linux/string.h @@ -259,7 +259,10 @@ __FORTIFY_INLINE __kernel_size_t strlen(const char *p) { __kernel_size_t ret; size_t p_size = __builtin_object_size(p, 0); - if (p_size == (size_t)-1) + + /* Work around gcc excess stack consumption issue */ + if (p_size == (size_t)-1 || + (__builtin_constant_p(p[p_size - 1]) && p[p_size - 1] == '\0')) return __builtin_strlen(p); ret = strnlen(p, p_size); if (p_size <= ret) |