linux-kernel - [PATCH] powerpc/interrupt: Use names in check_return_regs

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Date:   Fri, 25 Jun 2021 14:49:09 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>, npiggin@...il.com
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] powerpc/interrupt: Use names in check_return_regs_valid()

trap->regs == 0x3000 is trap_is_scv()

trap 0x500 is INTERRUPT_EXTERNAL

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/kernel/interrupt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c
index 1b4a99ecb7e5..0052702ee5ac 100644
--- a/arch/powerpc/kernel/interrupt.c
+++ b/arch/powerpc/kernel/interrupt.c
@@ -222,12 +222,12 @@ static void check_return_regs_valid(struct pt_regs *regs)
 	u8 *validp;
 	char *h;
 
-	if (regs->trap == 0x3000)
+	if (trap_is_scv(regs))
 		return;
 
 	trap = regs->trap;
 	// EE in HV mode sets HSRRs like 0xea0
-	if (cpu_has_feature(CPU_FTR_HVMODE) && trap == 0x500)
+	if (cpu_has_feature(CPU_FTR_HVMODE) && trap == INTERRUPT_EXTERNAL)
 		trap = 0xea0;
 
 	switch (trap) {
-- 
2.25.0