On 2022/10/18 15:40, Kefeng Wang wrote:
Most architectures(except arm64/x86/sparc) simply return 1 for
one space before the opening parens
kern_addr_valid(), which is only used in read_kcore(), and it
calls copy_from_kernel_nofault() which could check whether the
address is a valid kernel address, so no need kern_addr_valid(),
minor grammatical nit:
"... which already checks whether the address is a valid kernel address.
So kern_addr_valid is unnecessary, let's remove it."
let's remove unneeded kern_addr_valid() completely.
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
arch/alpha/include/asm/pgtable.h | 2 -
arch/arc/include/asm/pgtable-bits-arcv2.h | 2 -
arch/arm/include/asm/pgtable-nommu.h | 2 -
arch/arm/include/asm/pgtable.h | 4 --
arch/arm64/include/asm/pgtable.h | 2 -
arch/arm64/mm/mmu.c | 47 -----------------------
arch/arm64/mm/pageattr.c | 3 +-
arch/csky/include/asm/pgtable.h | 3 --
arch/hexagon/include/asm/page.h | 7 ----
arch/ia64/include/asm/pgtable.h | 16 --------
arch/loongarch/include/asm/pgtable.h | 2 -
arch/m68k/include/asm/pgtable_mm.h | 2 -
arch/m68k/include/asm/pgtable_no.h | 1 -
arch/microblaze/include/asm/pgtable.h | 3 --
arch/mips/include/asm/pgtable.h | 2 -
arch/nios2/include/asm/pgtable.h | 2 -
arch/openrisc/include/asm/pgtable.h | 2 -
arch/parisc/include/asm/pgtable.h | 15 --------
arch/powerpc/include/asm/pgtable.h | 7 ----
arch/riscv/include/asm/pgtable.h | 2 -
arch/s390/include/asm/pgtable.h | 2 -
arch/sh/include/asm/pgtable.h | 2 -
arch/sparc/include/asm/pgtable_32.h | 6 ---
arch/sparc/mm/init_32.c | 3 +-
arch/sparc/mm/init_64.c | 1 -
arch/um/include/asm/pgtable.h | 2 -
arch/x86/include/asm/pgtable_32.h | 9 -----
arch/x86/include/asm/pgtable_64.h | 1 -
arch/x86/mm/init_64.c | 41 --------------------
arch/xtensa/include/asm/pgtable.h | 2 -
fs/proc/kcore.c | 26 +++++--------
31 files changed, 11 insertions(+), 210 deletions(-)
diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h
index 946704bee599..fc70b7041b76 100644
--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -421,8 +421,6 @@ static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
__update_tlb(vma, address, (pte_t *)pmdp);
}
-#define kern_addr_valid(addr) (1)
-
static inline unsigned long pmd_pfn(pmd_t pmd)
{
return (pmd_val(pmd) & _PFN_MASK) >> _PFN_SHIFT;
Acked-by: WANG Xuerui <git@xxxxxxxxxx> # loongarch
Thanks!
--
WANG "xen0n" Xuerui
Linux/LoongArch mailing list: https://lore.kernel.org/loongarch/
