Buildresult: kbuild/pseries_defconfig/powerpc-gcc4.6 built on Nov 7 2019, 22:55

kisskb

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Status:	OK
Date/Time:	Nov 7 2019, 22:55
Duration:	0:02:23.398612
Builder:	ka3
Revision:	modpost: add an option to suppress 'exported twice' warnings (`aa9581108f498991e309c4a90b1af0805d2e41b5)`
Target:	kbuild/pseries_defconfig/powerpc-gcc4.6
Branch:	kbuild
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	pseries_defconfig (download)
Log:	Download original Possible warnings (13) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] net/bridge/br_netlink.c:648:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] net/core/devlink.c:4484:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1496:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify aa9581108f498991e309c4a90b1af0805d2e41b5^{commit} aa9581108f498991e309c4a90b1af0805d2e41b5 already have revision, skipping fetch # git checkout -q -f -B kisskb aa9581108f498991e309c4a90b1af0805d2e41b5 # git clean -qxdf # < git log -1 # commit aa9581108f498991e309c4a90b1af0805d2e41b5 # Author: Masahiro Yamada <yamada.masahiro@socionext.com> # Date: Wed Nov 6 20:23:57 2019 +0900 # # modpost: add an option to suppress 'exported twice' warnings # # Since commit "modpost: do not set ->preloaded for symbols from # Module.symvers", the modpost always warns about symbols exported # multiple times. # # Generally, I believe it is a good thing to show a warning when the # same symbol name is exported twice. This avoids the accidental symbol # conflict. # # However, in some cases, we build an external module to provide a # different version/variant of the in-kernel module, overriding the # same set of exported symbols. # # At least, there is one use-case in the upstream code; # tools/testing/nvdimm/libnvdimm.ko replaces drivers/nvdimm/libnvdimm.ko # in order to link it against mocked version of core kernel symbols. # # Now, this emits a lots of 'exported twice' warnings: # # https://lkml.org/lkml/2019/10/31/627 # # To suppress those, add a new option KBUILD_MULTI_EXPORT_NO_WARN. # # If you intentionally override the existing symbols, you can pass it # from the command line: # # make M=tools/testing/nvdimm KBUILD_MULTI_EXPORT_NO_WARN=1 # # Or, more conveniently, you can add it to the module Makefile, so # you can still do: # # make M=tools/testing/nvdimm # # without sprinkling the warnings. # # Reported-by: Jeff Moyer <jmoyer@redhat.com> # Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> # Tested-by: Jeff Moyer <jmoyer@redhat.com> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 aa9581108f498991e309c4a90b1af0805d2e41b5 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/kbuild_pseries_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- pseries_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/kbuild_pseries_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.30': /kisskb/src/net/bridge/br_netlink.c:648:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here /kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb': /kisskb/src/net/core/devlink.c:4484:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/drivers/usb/core/devio.c: In function 'async_completed': /kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1496:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char': /kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/kbuild_pseries_defconfig_powerpc-gcc4.6 # Build took: 0:02:23.398612

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