From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Marco Elver <elver@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>,
linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
kasan-dev@googlegroups.com, Rohan McLure <rmclure@linux.ibm.com>
Subject: [PATCH 3/3] xtensa: Remove 64 bits atomic builtins stubs
Date: Fri, 12 May 2023 17:31:19 +0200 [thread overview]
Message-ID: <a6834980e58c5e2cdf25b3db061f34975de46437.1683892665.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1683892665.git.christophe.leroy@csgroup.eu>
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>
---
arch/xtensa/lib/Makefile | 2 --
arch/xtensa/lib/kcsan-stubs.c | 54 -----------------------------------
2 files changed, 56 deletions(-)
delete mode 100644 arch/xtensa/lib/kcsan-stubs.c
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();
-}
--
2.40.1
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Marco Elver <elver@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
"Paul E. McKenney" <paulmck@kernel.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
Chris Zankel <chris@zankel.net>,
Max Filippov <jcmvbkbc@gmail.com>
Cc: Rohan McLure <rmclure@linux.ibm.com>,
kasan-dev@googlegroups.com, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] xtensa: Remove 64 bits atomic builtins stubs
Date: Fri, 12 May 2023 17:31:19 +0200 [thread overview]
Message-ID: <a6834980e58c5e2cdf25b3db061f34975de46437.1683892665.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1683892665.git.christophe.leroy@csgroup.eu>
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>
---
arch/xtensa/lib/Makefile | 2 --
arch/xtensa/lib/kcsan-stubs.c | 54 -----------------------------------
2 files changed, 56 deletions(-)
delete mode 100644 arch/xtensa/lib/kcsan-stubs.c
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();
-}
--
2.40.1
next prev parent reply other threads:[~2023-05-12 15:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-12 15:31 [PATCH 0/3] Extend KCSAN to all powerpc Christophe Leroy
2023-05-12 15:31 ` Christophe Leroy
2023-05-12 15:31 ` [PATCH 1/3] kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures Christophe Leroy
2023-05-12 15:31 ` Christophe Leroy
2023-05-12 16:09 ` Marco Elver
2023-05-12 16:09 ` Marco Elver
2023-05-12 18:39 ` Christophe Leroy
2023-05-12 18:39 ` Christophe Leroy
2023-06-09 12:55 ` Michael Ellerman
2023-06-09 12:55 ` Michael Ellerman
2023-05-12 15:31 ` [PATCH 2/3] powerpc/{32,book3e}: kcsan: Extend KCSAN Support Christophe Leroy
2023-05-12 15:31 ` Christophe Leroy
2023-05-12 15:31 ` Christophe Leroy [this message]
2023-05-12 15:31 ` [PATCH 3/3] xtensa: Remove 64 bits atomic builtins stubs Christophe Leroy
2023-05-12 16:38 ` Max Filippov
2023-05-12 16:38 ` Max Filippov
2023-05-12 16:22 ` [PATCH 0/3] Extend KCSAN to all powerpc Marco Elver
2023-05-12 16:22 ` Marco Elver
2023-07-03 5:26 ` Michael Ellerman
2023-07-03 5:26 ` Michael Ellerman
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