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| author |  Christophe Leroy <christophe.leroy@csgroup.eu>
| 2021-06-07 10:56:04 +0000 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2021-06-17 00:09:10 +1000 |
| commit | 45b30fafe528601f1a4449c9d68d8ebe7bbc39ad (patch) | |
| tree | 0e9c004ec205051e1ad08b924548777052f5c51a /arch/powerpc/kernel/head_44x.S | |
| parent | powerpc/selftests: Use gettid() instead of getppid() for null_syscall (diff) | |
| download | linux-45b30fafe528601f1a4449c9d68d8ebe7bbc39ad.tar.gz linux-45b30fafe528601f1a4449c9d68d8ebe7bbc39ad.tar.bz2 linux-45b30fafe528601f1a4449c9d68d8ebe7bbc39ad.zip | |
powerpc: Define empty_zero_page[] in C
At the time being, empty_zero_page[] is defined in each
platform head.S.
Define it in mm/mem.c instead, and put it in BSS section instead
of the DATA section. Commit 5227cfa71f9e ("arm64: mm: place
empty_zero_page in bss") explains why it is interesting to have
it in BSS.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5838caffa269e0957c5a50cc85477876220298b0.1623063174.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/head_44x.S')
| -rw-r--r-- | arch/powerpc/kernel/head_44x.S | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S index 2c4ffec027a2..e037eb615757 100644 --- a/arch/powerpc/kernel/head_44x.S +++ b/arch/powerpc/kernel/head_44x.S @@ -1241,10 +1241,6 @@ head_start_common: .align PAGE_SHIFT .globl sdata sdata: - .globl empty_zero_page -empty_zero_page: - .space PAGE_SIZE -EXPORT_SYMBOL(empty_zero_page) /* * To support >32-bit physical addresses, we use an 8KB pgdir. |