diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-28 11:19:01 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-28 11:19:01 +0300 |
| commit | 9749c37275cb1f72d309e676642f45eb92724190 (patch) | |
| tree | 7ecfdc655eebb56ddfee430f7f05e641ec4b49bb /arch/arc/kernel/intc-arcv2.c | |
| parent | 4f9adc8f91ba996374cd9487ecd1180fa99b9438 (diff) | |
| parent | cc4a41fe5541a73019a864883297bd5043aa6d98 (diff) | |
| download | linux-9749c37275cb1f72d309e676642f45eb92724190.tar.xz | |
Merge 4.13-rc7 into char-misc-next
We want the binder fix in here as well for testing and merge issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arc/kernel/intc-arcv2.c')
| -rw-r--r-- | arch/arc/kernel/intc-arcv2.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arc/kernel/intc-arcv2.c b/arch/arc/kernel/intc-arcv2.c index f928795fd07a..cf90714a676d 100644 --- a/arch/arc/kernel/intc-arcv2.c +++ b/arch/arc/kernel/intc-arcv2.c @@ -75,10 +75,13 @@ void arc_init_IRQ(void) * Set a default priority for all available interrupts to prevent * switching of register banks if Fast IRQ and multiple register banks * are supported by CPU. + * Also disable all IRQ lines so faulty external hardware won't + * trigger interrupt that kernel is not ready to handle. */ for (i = NR_EXCEPTIONS; i < irq_bcr.irqs + NR_EXCEPTIONS; i++) { write_aux_reg(AUX_IRQ_SELECT, i); write_aux_reg(AUX_IRQ_PRIORITY, ARCV2_IRQ_DEF_PRIO); + write_aux_reg(AUX_IRQ_ENABLE, 0); } /* setup status32, don't enable intr yet as kernel doesn't want */ |