LoongArch: Wire up memfd_secret system call

LoongArch supports ARCH_HAS_SET_DIRECT_MAP, therefore wire up the
memfd_secret system call, which just depends on it.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand (Red Hat) <david@kernel.org>
Signed-off-by: Lain "Fearyncess" Yang <fearyncess@aosc.io>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/include/asm/unistd.h b/arch/loongarch/include/asm/unistd.h
index e2c0f3d86c7bd5b149450ace1372f8cb6187154c..e7649c158248281b9938eb74cd59659567877861 100644 (file)
--- a/arch/loongarch/include/asm/unistd.h
+++ b/arch/loongarch/include/asm/unistd.h
@@ -10,5 +10,6 @@
 
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_MEMFD_SECRET
 
 #define NR_syscalls (__NR_syscalls)

diff --git a/arch/loongarch/kernel/Makefile.syscalls b/arch/loongarch/kernel/Makefile.syscalls
index cd46c2b69c7fde9cda7d0d11174d70570ef00a52..06f1605025375e8f7c97da431a65f5dfb490b268 100644 (file)
--- a/arch/loongarch/kernel/Makefile.syscalls
+++ b/arch/loongarch/kernel/Makefile.syscalls
@@ -1,5 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 
-# No special ABIs on loongarch so far
-syscall_abis_32 +=
-syscall_abis_64 +=
+syscall_abis_32 += memfd_secret
+syscall_abis_64 += memfd_secret

diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
index eaf9312097f7babcf48131b9dff66b3d68bc3781..79582438efc4d64584ddd8a429d79ced9cf8b5c9 100644 (file)
--- a/tools/testing/selftests/mm/Makefile
+++ b/tools/testing/selftests/mm/Makefile
@@ -72,7 +72,7 @@ TEST_GEN_FILES += madv_populate
 TEST_GEN_FILES += map_fixed_noreplace
 TEST_GEN_FILES += map_hugetlb
 TEST_GEN_FILES += map_populate
-ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
+ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64 loongarch32 loongarch64))
 TEST_GEN_FILES += memfd_secret
 endif
 TEST_GEN_FILES += migration