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| author | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-18 23:16:41 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-20 14:22:24 +1000 |
| commit | 3027a37c06be364e6443d3df3adf45576fba50cb (patch) | |
| tree | 8e4542dc44699c78f1b00efdc1e8c846e66faecd | |
| parent | 39d0099f94390eb7a677e1a5c9bb56a4daa242a1 (diff) | |
| download | lwn-3027a37c06be364e6443d3df3adf45576fba50cb.tar.gz lwn-3027a37c06be364e6443d3df3adf45576fba50cb.zip | |
powerpc: Only define _TASK_CPU for 32-bit
We have some interesting code in our Makefile to define _TASK_CPU, based
on awk'ing the value out of asm-offsets.h. It exists to circumvent some
circular header dependencies that prevent us from referring to
task_struct in the relevant code. See the comment around _TASK_CPU in
smp.h for more detail.
Maybe one day we can come up with a better solution, but for now we can
at least limit that logic to 32-bit, because it's not needed for 64-bit.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210418131641.1186227-1-mpe@ellerman.id.au
| -rw-r--r-- | arch/powerpc/Makefile | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 32dd693b4e42..3212d076ac6a 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -438,12 +438,15 @@ endif endif ifdef CONFIG_SMP +ifdef CONFIG_PPC32 prepare: task_cpu_prepare PHONY += task_cpu_prepare task_cpu_prepare: prepare0 $(eval KBUILD_CFLAGS += -D_TASK_CPU=$(shell awk '{if ($$2 == "TASK_CPU") print $$3;}' include/generated/asm-offsets.h)) -endif + +endif # CONFIG_PPC32 +endif # CONFIG_SMP PHONY += checkbin # Check toolchain versions: |