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Message-Id: <1301081931-11240-2-git-send-email-ddaney@caviumnetworks.com> Date: Fri, 25 Mar 2011 12:38:48 -0700 From: David Daney <ddaney@...iumnetworks.com> To: tglx@...utronix.de, linux-mips@...ux-mips.org, ralf@...ux-mips.org Cc: linux-kernel@...r.kernel.org, David Daney <ddaney@...iumnetworks.com> Subject: [PATCH v3 1/4] genirq: Reserve the irq when calling irq_set_chip() The helper macros and functions like for_each_active_irq() don't work unless the irq is in the allocated_irqs set. In the case of !CONFIG_SPARSE_IRQ, instead of forcing all users of the irq infrastructure to explicitly call irq_reserve_irq(), do it for them. Signed-off-by: David Daney <ddaney@...iumnetworks.com> --- kernel/irq/chip.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c index c9c0601..54d9aab 100644 --- a/kernel/irq/chip.c +++ b/kernel/irq/chip.c @@ -37,6 +37,12 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip) irq_chip_set_defaults(chip); desc->irq_data.chip = chip; irq_put_desc_unlock(desc, flags); + /* + * For !CONFIG_SPARSE_IRQ make the irq show up in + * allocated_irqs. For the CONFIG_SPARSE_IRQ case, it may + * already be there, and this call is harmless. + */ + irq_reserve_irq(irq); return 0; } EXPORT_SYMBOL(irq_set_chip); -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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