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authorXiongwei Song <sxwjean@gmail.com>2021-08-07 03:02:36 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2021-08-26 13:21:06 +0200
commit4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a (patch)
tree2993bcc95e5bbccf0a2101a7c6acd861f505bfec /arch/powerpc/platforms/4xx
parentselftests: Skip TM tests on synthetic TM implementations (diff)
downloadlinux-4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a.tar.xz
linux-4f8e78c0757e3c5a65d9d8ac76e2434c71a78f5a.zip
powerpc: Add esr as a synonym for pt_regs.dsisr
Create an anonymous union for dsisr and esr regsiters, we can reference esr to get the exception detail when CONFIG_4xx=y or CONFIG_BOOKE=y. Otherwise, reference dsisr. This makes code more clear. Signed-off-by: Xiongwei Song <sxwjean@gmail.com> [mpe: Reword commit title] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210807010239.416055-2-sxwjean@me.com
Diffstat (limited to 'arch/powerpc/platforms/4xx')
-rw-r--r--arch/powerpc/platforms/4xx/machine_check.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/4xx/machine_check.c b/arch/powerpc/platforms/4xx/machine_check.c
index a71c29892a91..a905da1d6f41 100644
--- a/arch/powerpc/platforms/4xx/machine_check.c
+++ b/arch/powerpc/platforms/4xx/machine_check.c
@@ -10,7 +10,7 @@
int machine_check_4xx(struct pt_regs *regs)
{
- unsigned long reason = regs->dsisr;
+ unsigned long reason = regs->esr;
if (reason & ESR_IMCP) {
printk("Instruction");