Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 6.0 618/862] powerpc/64/interrupt: Fix false warning in context tracking due to idle state | Date | Wed, 19 Oct 2022 10:31:45 +0200 |
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From: Nicholas Piggin <npiggin@gmail.com>
[ Upstream commit 56adbb7a8b6cc7fc9b940829c38494e53c9e57d1 ]
Commit 171476775d32 ("context_tracking: Convert state to atomic_t") added a CONTEXT_IDLE state which can be encountered by interrupts from kernel mode in the idle thread, causing a false positive warning.
Fixes: 171476775d32 ("context_tracking: Convert state to atomic_t") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220926054305.2671436-2-npiggin@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/powerpc/include/asm/interrupt.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h index 8069dbc4b8d1..b61555e30c7c 100644 --- a/arch/powerpc/include/asm/interrupt.h +++ b/arch/powerpc/include/asm/interrupt.h @@ -195,7 +195,8 @@ static inline void interrupt_enter_prepare(struct pt_regs *regs) * so avoid recursion. */ if (TRAP(regs) != INTERRUPT_PROGRAM) { - CT_WARN_ON(ct_state() != CONTEXT_KERNEL); + CT_WARN_ON(ct_state() != CONTEXT_KERNEL && + ct_state() != CONTEXT_IDLE); if (IS_ENABLED(CONFIG_PPC_IRQ_SOFT_MASK_DEBUG)) BUG_ON(is_implicit_soft_masked(regs)); } -- 2.35.1
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