diff options
| author | Helge Deller <deller@gmx.de> | 2023-05-26 09:33:02 +0300 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2023-06-30 18:14:13 +0300 |
| commit | 40c9c62c85a8b7e58350f2d00649f9e0060150b7 (patch) | |
| tree | 824246c41789aa4cbfcfb2bfb75b6104aadd51c0 /arch/parisc/include | |
| parent | 2255234460f0575603a171afd878e6a6083b23f1 (diff) | |
| download | linux-40c9c62c85a8b7e58350f2d00649f9e0060150b7.tar.xz | |
parisc: Check if IRQs are disabled when calling arch_local_irq_restore()
A trivial check to check if IRQs are on although they should be off.
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/include')
| -rw-r--r-- | arch/parisc/include/asm/irqflags.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/irqflags.h b/arch/parisc/include/asm/irqflags.h index 38a19c0bac3a..00fd87724588 100644 --- a/arch/parisc/include/asm/irqflags.h +++ b/arch/parisc/include/asm/irqflags.h @@ -31,6 +31,11 @@ static inline unsigned long arch_local_irq_save(void) static inline void arch_local_irq_restore(unsigned long flags) { + /* warn if IRQs are on although they should be off */ + if (IS_ENABLED(CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK)) + if (arch_local_save_flags() & PSW_I) + asm volatile("break 6,6\n"); /* SPINLOCK_BREAK_INSN */ + asm volatile("mtsm %0" : : "r" (flags) : "memory"); } |