Commit 6916fd08 authored Oct 08, 2012 by Catalin Marinas

arm64: Enable interrupts before calling do_notify_resume()



task_work_run() implementation had the side effect of enabling
interrupts. With commit ac3d0da8 (task_work: Make task_work_add()
lockless), interrupts are no longer enabled revealing the bug in the
arch code. This patch enables the interrupt explicitly before calling
do_notify_resume().

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent e048d004

arch/arm64/kernel/entry.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -583,6 +583,7 @@ work_pending:
		mov x0, sp // 'regs'
		tst x2, #PSR_MODE_MASK // user mode regs?
		b.ne no_work_pending // returning to kernel
		enable_irq // enable interrupts for do_notify_resume()
		bl do_notify_resume
		b ret_to_user
		work_resched: