From 08ee3a009f49ac160cf8df0b65aa7dc299c811b2 Mon Sep 17 00:00:00 2001 From: Thomas Bogendoerfer Date: Thu, 1 Apr 2021 14:56:35 +0200 Subject: MIPS: uaccess: Added __get/__put_kernel_nofault Added __get/__put_kernel_nofault as preparation for removing get/set_fs. Signed-off-by: Thomas Bogendoerfer Reviewed-by: Christoph Hellwig --- arch/mips/mm/Makefile | 4 ++++ arch/mips/mm/maccess.c | 10 ++++++++++ 2 files changed, 14 insertions(+) create mode 100644 arch/mips/mm/maccess.c (limited to 'arch/mips/mm') diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile index fa1f729e0700..4acc4f3d31f8 100644 --- a/arch/mips/mm/Makefile +++ b/arch/mips/mm/Makefile @@ -22,6 +22,10 @@ else obj-y += uasm-mips.o endif +ifndef CONFIG_EVA +obj-y += maccess.o +endif + obj-$(CONFIG_32BIT) += ioremap.o pgtable-32.o obj-$(CONFIG_64BIT) += ioremap64.o pgtable-64.o obj-$(CONFIG_HIGHMEM) += highmem.o diff --git a/arch/mips/mm/maccess.c b/arch/mips/mm/maccess.c new file mode 100644 index 000000000000..58173842c6be --- /dev/null +++ b/arch/mips/mm/maccess.c @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include +#include + +bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size) +{ + /* highest bit set means kernel space */ + return (unsigned long)unsafe_src >> (BITS_PER_LONG - 1); +} -- cgit v1.2.3