Re: [PATCH v2 2/4] arm64: kasan: abstract _text and _end to KERNEL_START/END
From: Will Deacon <will@kernel.org>
Date: 2021-02-04 12:48:04
Also in:
linux-arm-kernel, linux-mm, lkml
On Sat, Jan 09, 2021 at 06:32:50PM +0800, Lecopzer Chen wrote:
quoted hunk ↗ jump to hunk
Arm64 provide defined macro for KERNEL_START and KERNEL_END, thus replace them by the abstration instead of using _text and _end. Signed-off-by: Lecopzer Chen <redacted> --- arch/arm64/mm/kasan_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c index 39b218a64279..fa8d7ece895d 100644 --- a/arch/arm64/mm/kasan_init.c +++ b/arch/arm64/mm/kasan_init.c@@ -218,8 +218,8 @@ static void __init kasan_init_shadow(void) phys_addr_t pa_start, pa_end; u64 i; - kimg_shadow_start = (u64)kasan_mem_to_shadow(_text) & PAGE_MASK; - kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(_end)); + kimg_shadow_start = (u64)kasan_mem_to_shadow(KERNEL_START) & PAGE_MASK; + kimg_shadow_end = PAGE_ALIGN((u64)kasan_mem_to_shadow(KERNEL_END)); mod_shadow_start = (u64)kasan_mem_to_shadow((void *)MODULES_VADDR); mod_shadow_end = (u64)kasan_mem_to_shadow((void *)MODULES_END);@@ -241,7 +241,7 @@ static void __init kasan_init_shadow(void) clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END); kasan_map_populate(kimg_shadow_start, kimg_shadow_end, - early_pfn_to_nid(virt_to_pfn(lm_alias(_text)))); + early_pfn_to_nid(virt_to_pfn(lm_alias(KERNEL_START))));
To be honest, I think this whole line is pointless. We should be able to pass NUMA_NO_NODE now that we're not abusing the vmemmap() allocator to populate the shadow. Will _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek