Buildresult: kbuild/arm64-defconfig/arm64-gcc5 built on Jul 30 2019, 04:32
kisskb
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Status:
OK
Date/Time:
Jul 30 2019, 04:32
Duration:
0:09:20.859675
Builder:
ka3
Revision:
modpost: check for static EXPORT_SYMBOL* functions (
1a288d0d920dfb9747bbefc8d601a971885f470f)
Target:
kbuild/arm64-defconfig/arm64-gcc5
Branch:
kbuild
Compiler:
arm64-gcc5
(aarch64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.25.1)
Config:
defconfig
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Log:
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Possible warnings (10)
drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] WARNING: "kimage_vaddr" [vmlinux] is the static EXPORT_SYMBOL WARNING: "ahci_em_messages" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "jiffies" [vmlinux] is the static EXPORT_SYMBOL WARNING: "HYPERVISOR_platform_op" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "kimage_vaddr" [vmlinux] is the static EXPORT_SYMBOL WARNING: "drm_client_close" [drivers/gpu/drm/drm] is the static EXPORT_SYMBOL WARNING: "ahci_em_messages" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "HYPERVISOR_platform_op" [vmlinux] is the static EXPORT_SYMBOL_GPL
Full Log
# git gc # git rev-parse -q --verify 1a288d0d920dfb9747bbefc8d601a971885f470f^{commit} # git fetch -q -n -f git://gitlab.ozlabs.ibm.com/mirror/linux-kbuild.git for-next # git rev-parse -q --verify 1a288d0d920dfb9747bbefc8d601a971885f470f^{commit} 1a288d0d920dfb9747bbefc8d601a971885f470f # git checkout -q -f -B kisskb 1a288d0d920dfb9747bbefc8d601a971885f470f # git clean -qxdf # < git log -1 # commit 1a288d0d920dfb9747bbefc8d601a971885f470f # Author: Denis Efremov <efremov@linux.com> # Date: Sun Jul 28 13:09:06 2019 +0300 # # modpost: check for static EXPORT_SYMBOL* functions # # This patch adds a check to warn about static EXPORT_SYMBOL* functions # during the modpost. In most of the cases, a static symbol marked for # exporting is an odd combination that should be fixed either by deleting # the exporting mark or by removing the static attribute and adding the # appropriate declaration to headers. # # This check could help to detect the following problems: # 1. 550113d4e9f5 ("i2c: add newly exported functions to the header, too") # 2. 54638c6eaf44 ("net: phy: make exported variables non-static") # 3. 98ef2046f28b ("mm: remove the exporting of totalram_pages") # 4. 73df167c819e ("s390/zcrypt: remove the exporting of ap_query_configuration") # 5. a57caf8c527f ("sunrpc/cache: remove the exporting of cache_seq_next") # 6. e4e4730698c9 ("crypto: skcipher - remove the exporting of skcipher_walk_next") # 7. 14b4c48bb1ce ("gve: Remove the exporting of gve_probe") # 8. 9b79ee9773a8 ("scsi: libsas: remove the exporting of sas_wait_eh") # 9. ... # # Build time impact, allmodconfig, Dell XPS 15 9570 (measurements 3x): # $ make mrproper; make allmodconfig; time make -j12; \ # git checkout HEAD~1; \ # make mrproper; make allmodconfig; time make -j12 # 1. # (with patch) 17635,94s user 1895,54s system 1085% cpu 29:59,22 total # (w/o patch) 17275,42s user 1803,87s system 1112% cpu 28:35,66 total # 2. # (with patch) 17369,51s user 1763,28s system 1111% cpu 28:41,47 total # (w/o patch) 16880,50s user 1670,93s system 1113% cpu 27:46,56 total # 3. # (with patch) 17937,88s user 1842,53s system 1109% cpu 29:42,26 total # (w/o patch) 17267,55s user 1725,09s system 1111% cpu 28:28,17 total # # Thus, the current implementation adds approx. 1 min for allmodconfig. # # Acked-by: Emil Velikov <emil.l.velikov@gmail.com> # Signed-off-by: Denis Efremov <efremov@linux.com> # Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 1a288d0d920dfb9747bbefc8d601a971885f470f # < make -s -j 80 ARCH=arm64 O=/kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- defconfig # make -s -j 80 ARCH=arm64 O=/kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum arch/arm64/Makefile:38: LSE atomics not supported by binutils arch/arm64/Makefile:56: CROSS_COMPILE_COMPAT not defined or empty, the compat vDSO will not be built /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] pd->msg->buf[real_pos] = data; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here unsigned char data; ^ In file included from /kisskb/src/include/linux/rwsem.h:16:0, from /kisskb/src/include/linux/notifier.h:15, from /kisskb/src/include/linux/clk.h:14, from /kisskb/src/drivers/tty/serial/sh-sci.c:24: /kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/tty/serial/sh-sci.c:1353:16: note: 'flags' was declared here unsigned long flags; ^ WARNING: "kimage_vaddr" [vmlinux] is the static EXPORT_SYMBOL WARNING: "ahci_em_messages" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "jiffies" [vmlinux] is the static EXPORT_SYMBOL WARNING: "HYPERVISOR_platform_op" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "kimage_vaddr" [vmlinux] is the static EXPORT_SYMBOL WARNING: "drm_client_close" [drivers/gpu/drm/drm] is the static EXPORT_SYMBOL WARNING: "ahci_em_messages" [vmlinux] is the static EXPORT_SYMBOL_GPL WARNING: "HYPERVISOR_platform_op" [vmlinux] is the static EXPORT_SYMBOL_GPL Completed OK # rm -rf /kisskb/build/kbuild_arm64-defconfig_arm64-gcc5.4 # Build took: 0:09:20.859675
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