Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 69c17b5..3f16f38 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -80,6 +80,7 @@
save_static_function(sys_fork);
save_static_function(sys_clone);
+save_static_function(sys_clone3);
SYSCALL_DEFINE1(set_thread_area, unsigned long, addr)
{
@@ -101,11 +102,12 @@
if (unlikely(addr & 3))
return -EINVAL;
- if (unlikely(!access_ok(VERIFY_WRITE, (const void __user *)addr, 4)))
+ if (unlikely(!access_ok((const void __user *)addr, 4)))
return -EINVAL;
if (cpu_has_llsc && R10000_LLSC_WAR) {
__asm__ __volatile__ (
+ " .set push \n"
" .set arch=r4000 \n"
" li %[err], 0 \n"
"1: ll %[old], (%[addr]) \n"
@@ -122,7 +124,7 @@
" "STR(PTR)" 1b, 4b \n"
" "STR(PTR)" 2b, 4b \n"
" .previous \n"
- " .set mips0 \n"
+ " .set pop \n"
: [old] "=&r" (old),
[err] "=&r" (err),
[tmp] "=&r" (tmp)
@@ -131,7 +133,9 @@
[efault] "i" (-EFAULT)
: "memory");
} else if (cpu_has_llsc) {
+ loongson_llsc_mb();
__asm__ __volatile__ (
+ " .set push \n"
" .set "MIPS_ISA_ARCH_LEVEL" \n"
" li %[err], 0 \n"
"1: \n"
@@ -150,7 +154,7 @@
" "STR(PTR)" 1b, 5b \n"
" "STR(PTR)" 2b, 5b \n"
" .previous \n"
- " .set mips0 \n"
+ " .set pop \n"
: [old] "=&r" (old),
[err] "=&r" (err),
[tmp] "=&r" (tmp)