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authorThomas Gleixner <tglx@linutronix.de>2015-07-13 23:46:04 +0300
committerRalf Baechle <ralf@linux-mips.org>2015-08-26 16:23:30 +0300
commite0288a0a7bb8b28787453cb96f7aad272086def1 (patch)
tree60e015eb510bb682127d9b38af8d42fd40798368 /arch/mips/ath79
parent9154566ee3edd0f6a7aa4ef8bed76d3cd57bcb88 (diff)
downloadlinux-e0288a0a7bb8b28787453cb96f7aad272086def1.tar.xz
MIPS: alchemy: Remove pointless irqdisable/enable
bcsr_csc_handler() is a cascading interrupt handler. It has 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. [ralf@linux-mips.org: Fold in followup fix from Thomas Gleixner.] 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/10702/ Patchwork: https://patchwork.linux-mips.org/patch/10708/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/ath79')
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