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| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2016-09-05 19:30:22 +0800 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2016-09-06 19:09:38 +0100 |
| commit | dae8c235d9a21a564793ea9fe716233e11d30e21 (patch) | |
| tree | e2e46d253d4911af43cfd1d9b75a95ef3f78b395 /arch/arm64/mm/init.c | |
| parent | 282b87963556a971f9acbe3d430991b80480541a (diff) | |
| download | linux-dae8c235d9a21a564793ea9fe716233e11d30e21.tar.bz2 | |
arm64: mm: drop fixup_init() and mm.h
There is only fixup_init() in mm.h , and it is only called
in free_initmem(), so move the codes from fixup_init() into
free_initmem(), then drop fixup_init() and mm.h.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/mm/init.c')
| -rw-r--r-- | arch/arm64/mm/init.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 251e0824cd82..21c489bdeb4e 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -35,6 +35,7 @@ #include <linux/dma-contiguous.h> #include <linux/efi.h> #include <linux/swiotlb.h> +#include <linux/vmalloc.h> #include <asm/boot.h> #include <asm/fixmap.h> @@ -48,8 +49,6 @@ #include <asm/tlb.h> #include <asm/alternative.h> -#include "mm.h" - /* * We need to be able to catch inadvertent references to memstart_addr * that occur (potentially in generic code) before arm64_memblock_init() @@ -486,7 +485,12 @@ void free_initmem(void) { free_reserved_area(__va(__pa(__init_begin)), __va(__pa(__init_end)), 0, "unused kernel"); - fixup_init(); + /* + * Unmap the __init region but leave the VM area in place. This + * prevents the region from being reused for kernel modules, which + * is not supported by kallsyms. + */ + unmap_kernel_range((u64)__init_begin, (u64)(__init_end - __init_begin)); } #ifdef CONFIG_BLK_DEV_INITRD |