5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Gleixner tglx@linutronix.de
[ Upstream commit 8d187a77f04c14fb459a5301d69f733a5a1396bc ]
Commit 1b57d91b969c ("irqchip/gic-v2, v3: Prevent SW resends entirely") sett the flag which enforces interrupt handling in interrupt context and prevents software base resends for ARM GIC v2/v3.
But it missed that the helper function which checks the flag was hidden behind CONFIG_GENERIC_PENDING_IRQ, which is not set by ARM[64].
Make the helper unconditionally available so that the enforcement actually works.
Fixes: 1b57d91b969c ("irqchip/gic-v2, v3: Prevent SW resends entirely") Signed-off-by: Thomas Gleixner tglx@linutronix.de Link: https://lore.kernel.org/all/20241210101811.497716609@linutronix.de Signed-off-by: Sasha Levin sashal@kernel.org --- kernel/irq/internals.h | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h index f1d83a8b44171..da1f282d5a1d1 100644 --- a/kernel/irq/internals.h +++ b/kernel/irq/internals.h @@ -429,10 +429,6 @@ static inline struct cpumask *irq_desc_get_pending_mask(struct irq_desc *desc) { return desc->pending_mask; } -static inline bool handle_enforce_irqctx(struct irq_data *data) -{ - return irqd_is_handle_enforce_irqctx(data); -} bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear); #else /* CONFIG_GENERIC_PENDING_IRQ */ static inline bool irq_can_move_pcntxt(struct irq_data *data) @@ -459,11 +455,12 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear) { return false; } +#endif /* !CONFIG_GENERIC_PENDING_IRQ */ + static inline bool handle_enforce_irqctx(struct irq_data *data) { - return false; + return irqd_is_handle_enforce_irqctx(data); } -#endif /* !CONFIG_GENERIC_PENDING_IRQ */
#if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY) static inline int irq_domain_activate_irq(struct irq_data *data, bool reserve)