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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-22 12:47:53 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-22 12:47:53 -0700 |
| commit | e5e77cf9f9a275083f9a365a20d956fa8a67803e (patch) | |
| tree | 6597b94038cdcb671b41fb03c199a26e25518e83 /arch/mips/mti-malta/malta-int.c | |
| parent | b3a297d15b8f1be8304f0e0a3bbbb47b5f019939 (diff) | |
| parent | e376fdf42062e7373b82093b278f99aa2b547db7 (diff) | |
| download | linux-3.10-e5e77cf9f9a275083f9a365a20d956fa8a67803e.tar.gz linux-3.10-e5e77cf9f9a275083f9a365a20d956fa8a67803e.tar.bz2 linux-3.10-e5e77cf9f9a275083f9a365a20d956fa8a67803e.zip | |
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS fixes from Ralf Baechle:
"Random fixes across arch/mips, essentially.
One fix for an issue in get_user_pages_fast() which previously was
discovered on x86, a miscalculation in the support for the MIPS MT
hardware multithreading support, the RTC support for the Malta and a
fix for a spurious interrupt issue that seems to bite only very
special Malta configurations."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: Malta: Don't crash on spurious interrupt.
MIPS: Malta: Remove RTC Data Mode bootstrap breakage
MIPS: mm: Add compound tail page _mapcount when mapped
MIPS: CMP/SMTC: Fix tc_id calculation
Diffstat (limited to 'arch/mips/mti-malta/malta-int.c')
| -rw-r--r-- | arch/mips/mti-malta/malta-int.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 7b13a4caeea..fea823f1847 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -273,16 +273,19 @@ asmlinkage void plat_irq_dispatch(void) unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM; int irq; + if (unlikely(!pending)) { + spurious_interrupt(); + return; + } + irq = irq_ffs(pending); if (irq == MIPSCPU_INT_I8259A) malta_hw0_irqdispatch(); else if (gic_present && ((1 << irq) & ipi_map[smp_processor_id()])) malta_ipi_irqdispatch(); - else if (irq >= 0) - do_IRQ(MIPS_CPU_IRQ_BASE + irq); else - spurious_interrupt(); + do_IRQ(MIPS_CPU_IRQ_BASE + irq); } #ifdef CONFIG_MIPS_MT_SMP |