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authorChristophe Leroy <christophe.leroy@csgroup.eu>2023-05-12 17:31:19 +0200
committerMichael Ellerman <mpe@ellerman.id.au>2023-06-09 23:29:51 +1000
commitbcea4f7a70dc800e769ef02d8c3bc4df357ed893 (patch)
tree3540ff22caa9c4b072404ffeac7f5ad36995c429
parent95567f46b4d20c047750a5e3029461afcdc67697 (diff)
xtensa: Remove 64 bits atomic builtins stubs
The stubs were provided by commit 725aea873261 ("xtensa: enable KCSAN") to make linker happy allthought they are not meant to be used at all. KCSAN core has been fixed to not require them anymore on 32 bits architectures. Then they can be removed. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Acked-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Marco Elver <elver@google.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://msgid.link/a6834980e58c5e2cdf25b3db061f34975de46437.1683892665.git.christophe.leroy@csgroup.eu
-rw-r--r--arch/xtensa/lib/Makefile2
-rw-r--r--arch/xtensa/lib/kcsan-stubs.c54
2 files changed, 0 insertions, 56 deletions
diff --git a/arch/xtensa/lib/Makefile b/arch/xtensa/lib/Makefile
index 7ecef0519a27..23c22411d1d9 100644
--- a/arch/xtensa/lib/Makefile
+++ b/arch/xtensa/lib/Makefile
@@ -8,5 +8,3 @@ lib-y += memcopy.o memset.o checksum.o \
divsi3.o udivsi3.o modsi3.o umodsi3.o mulsi3.o umulsidi3.o \
usercopy.o strncpy_user.o strnlen_user.o
lib-$(CONFIG_PCI) += pci-auto.o
-lib-$(CONFIG_KCSAN) += kcsan-stubs.o
-KCSAN_SANITIZE_kcsan-stubs.o := n
diff --git a/arch/xtensa/lib/kcsan-stubs.c b/arch/xtensa/lib/kcsan-stubs.c
deleted file mode 100644
index 2b08faa62b86..000000000000
--- a/arch/xtensa/lib/kcsan-stubs.c
+++ /dev/null
@@ -1,54 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <linux/bug.h>
-#include <linux/types.h>
-
-void __atomic_store_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_load_8(const volatile void *p, int i)
-{
- BUG();
-}
-
-u64 __atomic_exchange_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-bool __atomic_compare_exchange_8(volatile void *p1, void *p2, u64 v, bool b, int i1, int i2)
-{
- BUG();
-}
-
-u64 __atomic_fetch_add_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_fetch_sub_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_fetch_and_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_fetch_or_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_fetch_xor_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}
-
-u64 __atomic_fetch_nand_8(volatile void *p, u64 v, int i)
-{
- BUG();
-}