[PATCH 6/7] riscv: Use offset_in_page() in text patching functions
Samuel Holland
samuel.holland at sifive.com
Sun Feb 11 18:55:17 PST 2024
This is a bit easier to parse than the equivalent bit manipulation.
Signed-off-by: Samuel Holland <samuel.holland at sifive.com>
---
arch/riscv/kernel/patch.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/kernel/patch.c b/arch/riscv/kernel/patch.c
index 9aa0050225c0..b0cf050738aa 100644
--- a/arch/riscv/kernel/patch.c
+++ b/arch/riscv/kernel/patch.c
@@ -54,7 +54,7 @@ static __always_inline void *patch_map(void *addr, const unsigned int fixmap)
BUG_ON(!page);
return (void *)set_fixmap_offset(fixmap, page_to_phys(page) +
- (uintaddr & ~PAGE_MASK));
+ offset_in_page(addr));
}
static void patch_unmap(int fixmap)
@@ -65,8 +65,8 @@ NOKPROBE_SYMBOL(patch_unmap);
static int __patch_insn_set(void *addr, u8 c, size_t len)
{
+ bool across_pages = (offset_in_page(addr) + len) > PAGE_SIZE;
void *waddr = addr;
- bool across_pages = (((uintptr_t)addr & ~PAGE_MASK) + len) > PAGE_SIZE;
/*
* Only two pages can be mapped at a time for writing.
@@ -98,8 +98,8 @@ NOKPROBE_SYMBOL(__patch_insn_set);
static int __patch_insn_write(void *addr, const void *insn, size_t len)
{
+ bool across_pages = (offset_in_page(addr) + len) > PAGE_SIZE;
void *waddr = addr;
- bool across_pages = (((uintptr_t) addr & ~PAGE_MASK) + len) > PAGE_SIZE;
int ret;
/*
--
2.43.0
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