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authorChristophe Leroy <christophe.leroy@csgroup.eu>2021-12-20 16:38:12 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2022-02-07 21:03:10 +1100
commita4520b25276500f1abcfc55d24f1251b7b08eff6 (patch)
tree5301d30fe547434d5ec5e7eb5559c866722a3fa5 /arch/powerpc/include/asm/thread_info.h
parent0c850965d6909d39fd69d6a3602bb62b48cad417 (diff)
powerpc/ftrace: Add support for livepatch to PPC32
PPC64 needs some special logic to properly set up the TOC. See commit 85baa095497f ("powerpc/livepatch: Add live patching support on ppc64le") for details. PPC32 doesn't have TOC so it doesn't need that logic, so adding LIVEPATCH support is straight forward. Add CONFIG_LIVEPATCH_64 and move livepatch stack logic into that item. Livepatch sample modules all work. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/63cb094125b6a6038c65eeac2abaabbabe63addd.1640017960.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/thread_info.h')
-rw-r--r--arch/powerpc/include/asm/thread_info.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index d6e649b3c70b..125328d1b980 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -51,7 +51,7 @@ struct thread_info {
unsigned int cpu;
#endif
unsigned long local_flags; /* private flags for thread */
-#ifdef CONFIG_LIVEPATCH
+#ifdef CONFIG_LIVEPATCH_64
unsigned long *livepatch_sp;
#endif
#if defined(CONFIG_VIRT_CPU_ACCOUNTING_NATIVE) && defined(CONFIG_PPC32)