Re: [PATCH] mm: remove kern_addr_valid() completely
From: Heiko Carstens <hca@linux.ibm.com>
Date: 2022-10-18 08:05:31
Also in:
linux-alpha, linux-fsdevel, linux-m68k, linux-mips, linux-riscv, linux-s390, linux-sh, lkml, loongarch, sparclinux
On Tue, Oct 18, 2022 at 03:40:14PM +0800, Kefeng Wang wrote:
Most architectures(except arm64/x86/sparc) simply return 1 for 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(), let's remove unneeded kern_addr_valid() completely. Signed-off-by: Kefeng Wang <redacted> ---
...
arch/s390/include/asm/pgtable.h | 2 -
For s390: Acked-by: Heiko Carstens <hca@linux.ibm.com>