The following commit has been merged into the irq/core branch of tip: Commit-ID: cdabce2e3dff7e4bcef73473987618569d178af3 Gitweb: https://git.kernel.org/tip/cdabce2e3dff7e4bcef73473987618569d178af3 Author: Jiafei Pan <jiafei....@nxp.com> AuthorDate: Fri, 14 Aug 2020 12:55:22 +08:00 Committer: Thomas Gleixner <t...@linutronix.de> CommitterDate: Wed, 16 Sep 2020 15:18:56 +02:00
softirq: Add debug check to __raise_softirq_irqoff() __raise_softirq_irqoff() must be called with interrupts disabled to protect the per CPU softirq pending state update against an interrupt and soft interrupt handling on return from interrupt. Add a lockdep assertion to validate the calling convention. [ tglx: Massaged changelog ] Signed-off-by: Jiafei Pan <jiafei....@nxp.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Link: https://lore.kernel.org/r/20200814045522.45719-1-jiafei....@nxp.com --- kernel/softirq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/softirq.c b/kernel/softirq.c index bf88d7f..09229ad 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -481,6 +481,7 @@ void raise_softirq(unsigned int nr) void __raise_softirq_irqoff(unsigned int nr) { + lockdep_assert_irqs_disabled(); trace_softirq_raise(nr); or_softirq_pending(1UL << nr); }
