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)); }