diff options
| author |   Thomas Gleixner <tglx@linutronix.de> | 2015-07-13 20:46:06 +0000 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2015-08-26 15:23:31 +0200 |
| commit | 9d9a2fa7dcbd05a1608a6a38b6ec1a092e117c3c (patch) | |
| tree | f7cd23d58b7e10edb95282a8c97a027e59d02e7b /arch/mips/netlogic/common/smp.c | |
| parent | MIPS: alchemy: Remove pointless irqdisable/enable (diff) | |
| download | linux-rng-9d9a2fa7dcbd05a1608a6a38b6ec1a092e117c3c.tar.xz linux-rng-9d9a2fa7dcbd05a1608a6a38b6ec1a092e117c3c.zip | |
MIPS: ath91: Remove pointless irqdisable/enable
The various interrupt flow handlers in ath79 are cascading interrupt
handlers. They all have a disable_irq_nosync()/enable_irq() pair
around the generic_handle_irq() call. The value of this disable/enable
is zero because its a complete noop:
disable_irq_nosync() merily increments the disable count without
actually masking the interrupt. enable_irq() soleley decrements the
disable count without touching the interrupt chip. The interrupt
cannot arrive again because the complete call chain runs with
interrupts disabled.
Remove it.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-mips@linux-mips.org
Cc: LKML <linux-kernel@vger.kernel.org>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Patchwork: https://patchwork.linux-mips.org/patch/10703/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/netlogic/common/smp.c')
0 files changed, 0 insertions, 0 deletions