Le 09/02/2021 à 02:11, Nicholas Piggin a écrit :
Excerpts from Christophe Leroy's message of February 9, 2021 1:10 am:
regs->softe doesn't exist on PPC32.
Add irq_soft_mask_regs_set_state() helper to set regs->softe.
This helper will void on PPC32.
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/include/asm/hw_irq.h | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/hw_irq.h
b/arch/powerpc/include/asm/hw_irq.h
index 614957f74cee..ed0c3b049dfd 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -38,6 +38,8 @@
#define PACA_IRQ_MUST_HARD_MASK (PACA_IRQ_EE)
#endif
+#endif /* CONFIG_PPC64 */
+
/*
* flags for paca->irq_soft_mask
*/
@@ -46,8 +48,6 @@
#define IRQS_PMI_DISABLED 2
#define IRQS_ALL_DISABLED (IRQS_DISABLED | IRQS_PMI_DISABLED)
-#endif /* CONFIG_PPC64 */
-
#ifndef __ASSEMBLY__
#ifdef CONFIG_PPC64
@@ -287,6 +287,10 @@ extern void irq_set_pending_from_srr1(unsigned long srr1);
extern void force_external_irq_replay(void);
+static inline void irq_soft_mask_regs_set_state(struct pt_regs *regs, unsigned long val)
+{
+ regs->softe = val;
+}
#else /* CONFIG_PPC64 */
static inline unsigned long arch_local_save_flags(void)
@@ -355,6 +359,9 @@ static inline bool arch_irq_disabled_regs(struct pt_regs
*regs)
static inline void may_hard_irq_enable(void) { }
+static inline void irq_soft_mask_regs_set_state(struct pt_regs *regs, unsigned long val)
+{
+}
#endif /* CONFIG_PPC64 */
#define ARCH_IRQ_INIT_FLAGS IRQ_NOREQUEST
What I don't like about this where you use it is it kind of pollutes
the ppc32 path with this function which is not valid to use.
I would prefer if you had this purely so it could compile with:
if (IS_ENABLED(CONFIG_PPC64)))
irq_soft_mask_regs_set_state(regs, blah);
And then you could make the ppc32 cause a link error if it did not
get eliminated at compile time (e.g., call an undefined function).
You could do the same with the kuap_ functions to change some ifdefs
to IS_ENABLED.
That's just my preference but if you prefer this way I guess that's
okay.
I see you didn't change your mind since last April :)
I'll see what I can do.
Christophe
