ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
exists here in sub-directories of lib/ to keep the behavior of commit 2464a609ded0 ("ftrace: do not trace library functions").
Since that commit, not only the objects in lib/ but also the ones in the sub-directories are excluded from ftrace (although the commit description did not explicitly mention this).
However, most of library functions in sub-directories are not so hot. Re-add them to ftrace.
Going forward, only the objects right under lib/ will be excluded.
Cc: Ingo Molnar mingo@kernel.org Signed-off-by: Masahiro Yamada masahiroy@kernel.org ---
Changes in v2: - New patch
lib/842/Makefile | 3 --- lib/crypto/Makefile | 2 -- lib/dim/Makefile | 2 -- lib/fonts/Makefile | 2 -- lib/kunit/Makefile | 3 --- lib/livepatch/Makefile | 2 -- lib/lz4/Makefile | 1 - lib/lzo/Makefile | 2 -- lib/math/Makefile | 2 -- lib/mpi/Makefile | 2 -- lib/raid6/Makefile | 3 --- lib/reed_solomon/Makefile | 2 -- lib/xz/Makefile | 3 --- lib/zlib_deflate/Makefile | 2 -- lib/zlib_dfltcc/Makefile | 2 -- lib/zlib_inflate/Makefile | 2 -- lib/zstd/Makefile | 1 - 17 files changed, 36 deletions(-)
diff --git a/lib/842/Makefile b/lib/842/Makefile index b815e824ae37..6f7aad269288 100644 --- a/lib/842/Makefile +++ b/lib/842/Makefile @@ -1,6 +1,3 @@ # SPDX-License-Identifier: GPL-2.0-only - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_842_COMPRESS) += 842_compress.o obj-$(CONFIG_842_DECOMPRESS) += 842_decompress.o diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile index b557ef0b07c2..3a435629d9ce 100644 --- a/lib/crypto/Makefile +++ b/lib/crypto/Makefile @@ -1,7 +1,5 @@ # SPDX-License-Identifier: GPL-2.0
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - # chacha is used by the /dev/random driver which is always builtin obj-y += chacha.o obj-$(CONFIG_CRYPTO_LIB_CHACHA_GENERIC) += libchacha.o diff --git a/lib/dim/Makefile b/lib/dim/Makefile index 97fc3e89d34e..1d6858a108cb 100644 --- a/lib/dim/Makefile +++ b/lib/dim/Makefile @@ -2,8 +2,6 @@ # DIM Dynamic Interrupt Moderation library #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_DIMLIB) += dim.o
dim-y := dim.o net_dim.o rdma_dim.o diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile index f951750c179e..ed95070860de 100644 --- a/lib/fonts/Makefile +++ b/lib/fonts/Makefile @@ -1,8 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 # Font handling
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - font-objs := fonts.o
font-objs-$(CONFIG_FONT_SUN8x16) += font_sun8x16.o diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile index 8c847557ab24..724b94311ca3 100644 --- a/lib/kunit/Makefile +++ b/lib/kunit/Makefile @@ -1,6 +1,3 @@ - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_KUNIT) += kunit.o
kunit-objs += test.o \ diff --git a/lib/livepatch/Makefile b/lib/livepatch/Makefile index 9abdf615b088..295b94bff370 100644 --- a/lib/livepatch/Makefile +++ b/lib/livepatch/Makefile @@ -2,8 +2,6 @@ # # Makefile for livepatch test code.
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_TEST_LIVEPATCH) += test_klp_atomic_replace.o \ test_klp_callbacks_demo.o \ test_klp_callbacks_demo2.o \ diff --git a/lib/lz4/Makefile b/lib/lz4/Makefile index 53da4cab7015..5b42242afaa2 100644 --- a/lib/lz4/Makefile +++ b/lib/lz4/Makefile @@ -1,6 +1,5 @@ # SPDX-License-Identifier: GPL-2.0-only ccflags-y += -O3 -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
obj-$(CONFIG_LZ4_COMPRESS) += lz4_compress.o obj-$(CONFIG_LZ4HC_COMPRESS) += lz4hc_compress.o diff --git a/lib/lzo/Makefile b/lib/lzo/Makefile index 9565a555275b..2f58fafbbddd 100644 --- a/lib/lzo/Makefile +++ b/lib/lzo/Makefile @@ -1,6 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - lzo_compress-objs := lzo1x_compress.o lzo_decompress-objs := lzo1x_decompress_safe.o
diff --git a/lib/math/Makefile b/lib/math/Makefile index 49aa50e28185..be6909e943bd 100644 --- a/lib/math/Makefile +++ b/lib/math/Makefile @@ -1,6 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-y += div64.o gcd.o lcm.o int_pow.o int_sqrt.o reciprocal_div.o
obj-$(CONFIG_CORDIC) += cordic.o diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile index df7883521619..d5874a7f5ff9 100644 --- a/lib/mpi/Makefile +++ b/lib/mpi/Makefile @@ -3,8 +3,6 @@ # MPI multiprecision maths library (from gpg) #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_MPILIB) = mpi.o
mpi-y = \ diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile index 3482d6ae3f3b..b4c0df6d706d 100644 --- a/lib/raid6/Makefile +++ b/lib/raid6/Makefile @@ -1,7 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_RAID6_PQ) += raid6_pq.o
raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \ diff --git a/lib/reed_solomon/Makefile b/lib/reed_solomon/Makefile index a5c9defdac7f..5d4fa68f26cb 100644 --- a/lib/reed_solomon/Makefile +++ b/lib/reed_solomon/Makefile @@ -3,7 +3,5 @@ # This is a modified version of reed solomon lib, #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_REED_SOLOMON) += reed_solomon.o obj-$(CONFIG_REED_SOLOMON_TEST) += test_rslib.o diff --git a/lib/xz/Makefile b/lib/xz/Makefile index fae9b6c7c389..fa6af814a8d1 100644 --- a/lib/xz/Makefile +++ b/lib/xz/Makefile @@ -1,7 +1,4 @@ # SPDX-License-Identifier: GPL-2.0-only - -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_XZ_DEC) += xz_dec.o xz_dec-y := xz_dec_syms.o xz_dec_stream.o xz_dec_lzma2.o xz_dec-$(CONFIG_XZ_DEC_BCJ) += xz_dec_bcj.o diff --git a/lib/zlib_deflate/Makefile b/lib/zlib_deflate/Makefile index 1fcefe73536f..2622e03c0b94 100644 --- a/lib/zlib_deflate/Makefile +++ b/lib/zlib_deflate/Makefile @@ -7,8 +7,6 @@ # decompression code. #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_DEFLATE) += zlib_deflate.o
zlib_deflate-objs := deflate.o deftree.o deflate_syms.o diff --git a/lib/zlib_dfltcc/Makefile b/lib/zlib_dfltcc/Makefile index 7a8067f6e772..8e4d5afbbb10 100644 --- a/lib/zlib_dfltcc/Makefile +++ b/lib/zlib_dfltcc/Makefile @@ -6,8 +6,6 @@ # This is the code for s390 zlib hardware support. #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_DFLTCC) += zlib_dfltcc.o
zlib_dfltcc-objs := dfltcc.o dfltcc_deflate.o dfltcc_inflate.o dfltcc_syms.o diff --git a/lib/zlib_inflate/Makefile b/lib/zlib_inflate/Makefile index a451e96f9845..27327d3e9f54 100644 --- a/lib/zlib_inflate/Makefile +++ b/lib/zlib_inflate/Makefile @@ -14,8 +14,6 @@ # uncompression can be done without blocking on allocation). #
-ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE) - obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate.o
zlib_inflate-objs := inffast.o inflate.o infutil.o \ diff --git a/lib/zstd/Makefile b/lib/zstd/Makefile index 01be908a2d94..f5d778e7e5c7 100644 --- a/lib/zstd/Makefile +++ b/lib/zstd/Makefile @@ -3,7 +3,6 @@ obj-$(CONFIG_ZSTD_COMPRESS) += zstd_compress.o obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd_decompress.o
ccflags-y += -O3 -ccflags-remove-$(CONFIG_FUNCTION_TRACER) += $(CC_FLAGS_FTRACE)
zstd_compress-y := fse_compress.o huf_compress.o compress.o \ entropy_common.o fse_decompress.o zstd_common.o