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| author |  Hsin-Yi Wang <hsinyi@chromium.org>
| 2019-08-23 14:24:50 +0800 |
|---|---|---|
| committer |  Will Deacon <will@kernel.org>
| 2019-08-23 16:39:16 +0100 |
| commit | e112b032a72c78f15d0c803c5dc6be444c2e6c66 (patch) | |
| tree | 1356af931f59efe60649b3ab929fe822ebfe3e5b /arch/arm64/kernel/kaslr.c | |
| parent | Linux 5.3-rc3 (diff) | |
| download | linux-e112b032a72c78f15d0c803c5dc6be444c2e6c66.tar.gz linux-e112b032a72c78f15d0c803c5dc6be444c2e6c66.tar.bz2 linux-e112b032a72c78f15d0c803c5dc6be444c2e6c66.zip | |
arm64: map FDT as RW for early_init_dt_scan()
Currently in arm64, FDT is mapped to RO before it's passed to
early_init_dt_scan(). However, there might be some codes
(eg. commit "fdt: add support for rng-seed") that need to modify FDT
during init. Map FDT to RO after early fixups are done.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/kaslr.c')
| -rw-r--r-- | arch/arm64/kernel/kaslr.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c index 708051655ad9..d94a3e41cef9 100644 --- a/arch/arm64/kernel/kaslr.c +++ b/arch/arm64/kernel/kaslr.c @@ -62,9 +62,6 @@ out: return default_cmdline; } -extern void *__init __fixmap_remap_fdt(phys_addr_t dt_phys, int *size, - pgprot_t prot); - /* * This routine will be executed with the kernel mapped at its default virtual * address, and if it returns successfully, the kernel will be remapped, and @@ -93,7 +90,7 @@ u64 __init kaslr_early_init(u64 dt_phys) * attempt at mapping the FDT in setup_machine() */ early_fixmap_init(); - fdt = __fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL); + fdt = fixmap_remap_fdt(dt_phys, &size, PAGE_KERNEL); if (!fdt) return 0; |