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authorLinus Torvalds <torvalds@linux-foundation.org>2020-04-11 09:46:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-11 09:46:12 -0700
commitb753101a4ac0b906064a72feec43f5b80a1fe2e5 (patch)
tree90f8f851a5de81d17f2154526a13d91f07075bad /lib
parentc7850ae4d71c48ab352bb4245bc24f7e984fe721 (diff)
parent00d76a0c19436c88ffcafa1e816f0c0c9af082a0 (diff)
Merge tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada: - raise minimum supported binutils version to 2.23 - remove old CONFIG_AS_* macros that we know binutils >= 2.23 supports - move remaining CONFIG_AS_* tests to Kconfig from Makefile - enable -Wtautological-compare warnings to catch more issues - do not support GCC plugins for GCC <= 4.7 - fix various breakages of 'make xconfig' - include the linker version used for linking the kernel into LINUX_COMPILER, which is used for the banner, and also exposed to /proc/version - link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y, which allows us to remove the lib-ksyms.o workaround, and to solve the last known issue of the LLVM linker - add dummy tools in scripts/dummy-tools/ to enable all compiler tests in Kconfig, which will be useful for distro maintainers - support the single switch, LLVM=1 to use Clang and all LLVM utilities instead of GCC and Binutils. - support LLVM_IAS=1 to enable the integrated assembler, which is still experimental * tag 'kbuild-v5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (36 commits) kbuild: fix comment about missing include guard detection kbuild: support LLVM=1 to switch the default tools to Clang/LLVM kbuild: replace AS=clang with LLVM_IAS=1 kbuild: add dummy toolchains to enable all cc-option etc. in Kconfig kbuild: link lib-y objects to vmlinux forcibly when CONFIG_MODULES=y MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory kbuild: remove -I$(srctree)/tools/include from scripts/Makefile kbuild: do not pass $(KBUILD_CFLAGS) to scripts/mkcompile_h Documentation/llvm: fix the name of llvm-size kbuild: mkcompile_h: Include $LD version in /proc/version kconfig: qconf: Fix a few alignment issues kconfig: qconf: remove some old bogus TODOs kconfig: qconf: fix support for the split view mode kconfig: qconf: fix the content of the main widget kconfig: qconf: Change title for the item window kconfig: qconf: clean deprecated warnings gcc-plugins: drop support for GCC <= 4.7 kbuild: Enable -Wtautological-compare x86: update AS_* macros to binutils >=2.23, supporting ADX and AVX2 crypto: x86 - clean up poly1305-x86_64-cryptogams.S by 'make clean' ...
Diffstat (limited to 'lib')
-rw-r--r--lib/raid6/algos.c8
-rw-r--r--lib/raid6/avx2.c4
-rw-r--r--lib/raid6/recov_avx2.c6
-rw-r--r--lib/raid6/recov_ssse3.c6
-rw-r--r--lib/raid6/test/Makefile9
5 files changed, 3 insertions, 30 deletions
diff --git a/lib/raid6/algos.c b/lib/raid6/algos.c
index bf1b4765c8f6..6d5e5000fdd7 100644
--- a/lib/raid6/algos.c
+++ b/lib/raid6/algos.c
@@ -34,10 +34,8 @@ const struct raid6_calls * const raid6_algos[] = {
&raid6_avx512x2,
&raid6_avx512x1,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_avx2x2,
&raid6_avx2x1,
-#endif
&raid6_sse2x2,
&raid6_sse2x1,
&raid6_sse1x2,
@@ -51,11 +49,9 @@ const struct raid6_calls * const raid6_algos[] = {
&raid6_avx512x2,
&raid6_avx512x1,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_avx2x4,
&raid6_avx2x2,
&raid6_avx2x1,
-#endif
&raid6_sse2x4,
&raid6_sse2x2,
&raid6_sse2x1,
@@ -97,13 +93,11 @@ void (*raid6_datap_recov)(int, size_t, int, void **);
EXPORT_SYMBOL_GPL(raid6_datap_recov);
const struct raid6_recov_calls *const raid6_recov_algos[] = {
+#ifdef CONFIG_X86
#ifdef CONFIG_AS_AVX512
&raid6_recov_avx512,
#endif
-#ifdef CONFIG_AS_AVX2
&raid6_recov_avx2,
-#endif
-#ifdef CONFIG_AS_SSSE3
&raid6_recov_ssse3,
#endif
#ifdef CONFIG_S390
diff --git a/lib/raid6/avx2.c b/lib/raid6/avx2.c
index 87184b6da28a..f299476e1d76 100644
--- a/lib/raid6/avx2.c
+++ b/lib/raid6/avx2.c
@@ -13,8 +13,6 @@
*
*/
-#ifdef CONFIG_AS_AVX2
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -470,5 +468,3 @@ const struct raid6_calls raid6_avx2x4 = {
1 /* Has cache hints */
};
#endif
-
-#endif /* CONFIG_AS_AVX2 */
diff --git a/lib/raid6/recov_avx2.c b/lib/raid6/recov_avx2.c
index 7a3b5e7f66ee..4e8095403ee2 100644
--- a/lib/raid6/recov_avx2.c
+++ b/lib/raid6/recov_avx2.c
@@ -4,8 +4,6 @@
* Author: Jim Kukunas <james.t.kukunas@linux.intel.com>
*/
-#ifdef CONFIG_AS_AVX2
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -313,7 +311,3 @@ const struct raid6_recov_calls raid6_recov_avx2 = {
#endif
.priority = 2,
};
-
-#else
-#warning "your version of binutils lacks AVX2 support"
-#endif
diff --git a/lib/raid6/recov_ssse3.c b/lib/raid6/recov_ssse3.c
index 1de97d2405d0..4bfa3c6b60de 100644
--- a/lib/raid6/recov_ssse3.c
+++ b/lib/raid6/recov_ssse3.c
@@ -3,8 +3,6 @@
* Copyright (C) 2012 Intel Corporation
*/
-#ifdef CONFIG_AS_SSSE3
-
#include <linux/raid/pq.h>
#include "x86.h"
@@ -328,7 +326,3 @@ const struct raid6_recov_calls raid6_recov_ssse3 = {
#endif
.priority = 1,
};
-
-#else
-#warning "your version of binutils lacks SSSE3 support"
-#endif
diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index 3ab8720aa2f8..a4c7cd74cff5 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -34,14 +34,9 @@ endif
ifeq ($(IS_X86),yes)
OBJS += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
- CFLAGS += $(shell echo "pshufb %xmm0, %xmm0" | \
- gcc -c -x assembler - >&/dev/null && \
- rm ./-.o && echo -DCONFIG_AS_SSSE3=1)
- CFLAGS += $(shell echo "vpbroadcastb %xmm0, %ymm1" | \
- gcc -c -x assembler - >&/dev/null && \
- rm ./-.o && echo -DCONFIG_AS_AVX2=1)
+ CFLAGS += -DCONFIG_X86
CFLAGS += $(shell echo "vpmovm2b %k1, %zmm5" | \
- gcc -c -x assembler - >&/dev/null && \
+ gcc -c -x assembler - >/dev/null 2>&1 && \
rm ./-.o && echo -DCONFIG_AS_AVX512=1)
else ifeq ($(HAS_NEON),yes)
OBJS += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o