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 <wangkefeng.wang@xxxxxxxxxx> > --- ... > arch/s390/include/asm/pgtable.h | 2 - For s390: Acked-by: Heiko Carstens <hca@xxxxxxxxxxxxx>
