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authorChristophe Leroy <christophe.leroy@c-s.fr>2019-01-31 13:08:50 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2019-02-23 14:31:39 +0300
commit054860897cd35a4e9cec953ae955b429e31e74f7 (patch)
tree53935bbb2c2dcd7116f24746fc303c3bff695481 /arch/powerpc/kernel/misc_32.S
parent92ab45c5f2db0caa68243be8cfa5e390a1de8c3a (diff)
downloadlinux-054860897cd35a4e9cec953ae955b429e31e74f7.tar.xz
powerpc: Only use task_struct 'cpu' field on SMP
When moving to CONFIG_THREAD_INFO_IN_TASK, the thread_info 'cpu' field gets moved into task_struct and only defined when CONFIG_SMP is set. This patch ensures that TI_CPU is only used when CONFIG_SMP is set and that task_struct 'cpu' field is not used directly out of SMP code. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
-rw-r--r--arch/powerpc/kernel/misc_32.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 57d2ffb2d45c..02b8cdd73792 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -183,10 +183,14 @@ _GLOBAL(low_choose_750fx_pll)
or r4,r4,r5
mtspr SPRN_HID1,r4
+#ifdef CONFIG_SMP
/* Store new HID1 image */
CURRENT_THREAD_INFO(r6, r1)
lwz r6,TI_CPU(r6)
slwi r6,r6,2
+#else
+ li r6, 0
+#endif
addis r6,r6,nap_save_hid1@ha
stw r4,nap_save_hid1@l(r6)