Buildresult: powerpc-next-rand/powerpc-randconfig/powerpc-gcc4.6 built on Nov 25 2019, 20:54
kisskb
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Status:
OK
Date/Time:
Nov 25 2019, 20:54
Duration:
0:03:40.318556
Builder:
blade4b
Revision:
powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp (
324332cb5445aa6470fe57ba6ddcfbc9504958e2)
Target:
powerpc-next-rand/powerpc-randconfig/powerpc-gcc4.6
Branch:
powerpc-next-rand
Compiler:
powerpc-gcc4.6
(powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:
randconfig
(
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Log:
Download original
Possible warnings (22)
arch/powerpc/kernel/eeh.c:1769:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] mm/ksm.c:1391:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:63:13: warning: 'head' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] drivers/i2c/busses/i2c-piix4.c:875:6: warning: 'retval' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/scheduler/sched_main.c:491:20: warning: 'guilty_context' may be used uninitialized in this function [-Wuninitialized] include/linux/mfd/da9052/da9052.h:143:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/scsi/aacraid/src.c:84:4: warning: 'bellbits' may be used uninitialized in this function [-Wuninitialized] drivers/media/dvb-frontends/mn88472.c:330:27: warning: 'bandwidth_vals_ptr' may be used uninitialized in this function [-Wuninitialized] drivers/media/dvb-frontends/mn88472.c:311:20: warning: 'bandwidth_val' may be used uninitialized in this function [-Wuninitialized] drivers/media/dvb-frontends/mn88473.c:147:21: warning: 'conf_val_ptr' may be used uninitialized in this function [-Wuninitialized] drivers/video/backlight/adp8860_bl.c:600:32: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] drivers/video/backlight/adp8860_bl.c:578:10: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] drivers/video/backlight/adp8860_bl.c:578:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] drivers/video/backlight/adp8860_bl.c:442:16: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] drivers/gpu/drm/drm_atomic.c:426:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] drivers/usb/misc/usbtest.c:2148:1: warning: the frame size of 1248 bytes is larger than 1024 bytes [-Wframe-larger-than=]
Full Log
# git rev-parse -q --verify 324332cb5445aa6470fe57ba6ddcfbc9504958e2^{commit} 324332cb5445aa6470fe57ba6ddcfbc9504958e2 already have revision, skipping fetch # git checkout -q -f -B kisskb 324332cb5445aa6470fe57ba6ddcfbc9504958e2 # git clean -qxdf # < git log -1 # commit 324332cb5445aa6470fe57ba6ddcfbc9504958e2 # Author: Nathan Chancellor <natechancellor@gmail.com> # Date: Mon Nov 18 21:57:12 2019 -0700 # # powerpc/prom_init: Use -ffreestanding to avoid a reference to bcmp # # LLVM revision r374662 gives LLVM the ability to convert certain loops # into a reference to bcmp as an optimization; this breaks # prom_init_check.sh: # # CALL arch/powerpc/kernel/prom_init_check.sh # Error: External symbol 'bcmp' referenced from prom_init.c # make[2]: *** [arch/powerpc/kernel/Makefile:196: prom_init_check] Error 1 # # bcmp is defined in lib/string.c as a wrapper for memcmp so this could # be added to the whitelist. However, commit # 450e7dd4001f ("powerpc/prom_init: don't use string functions from # lib/") copied memcmp as prom_memcmp to avoid KASAN instrumentation so # having bcmp be resolved to regular memcmp would break that assumption. # Furthermore, because the compiler is the one that inserted bcmp, we # cannot provide something like prom_bcmp. # # To prevent LLVM from being clever with optimizations like this, use # -ffreestanding to tell LLVM we are not hosted so it is not free to # make transformations like this. # # Reviewed-by: Nick Desaulneris <ndesaulniers@google.com> # Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20191119045712.39633-4-natechancellor@gmail.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 324332cb5445aa6470fe57ba6ddcfbc9504958e2 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- randconfig KCONFIG_SEED=0xBA903331 # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_CPU_BIG_ENDIAN=y # Added to kconfig CONFIG_PPC64=y # Added to kconfig CONFIG_PPC_DISABLE_WERROR=y # Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y # Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y # Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y # Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n # Added to kconfig CONFIG_UBSAN=n # yes \n | make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/arch/powerpc/kernel/eeh.c:1769:12: warning: 'proc_eeh_show' defined but not used [-Wunused-function] /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/mm/ksm.c: In function 'stable_node_dup': /kisskb/src/mm/ksm.c:1391:15: warning: 'found_rmap_hlist_len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl': /kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c: In function 'rhashtable_rehash_one': /kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here /kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty': /kisskb/src/include/linux/list.h:63:13: warning: 'head' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/node.c:236:24: note: 'head' was declared here /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] /kisskb/src/fs/splice.c: In function '__do_compat_sys_vmsplice': /kisskb/src/fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/splice.c: In function '__do_sys_vmsplice': /kisskb/src/fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/busses/i2c-piix4.c: In function 'piix4_add_adapters_sb800': /kisskb/src/drivers/i2c/busses/i2c-piix4.c:875:6: warning: 'retval' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/scheduler/sched_main.c: In function 'drm_sched_resubmit_jobs': /kisskb/src/drivers/gpu/drm/scheduler/sched_main.c:491:20: warning: 'guilty_context' may be used uninitialized in this function [-Wuninitialized] In file included from /kisskb/src/drivers/rtc/rtc-da9052.c:16:0: /kisskb/src/include/linux/mfd/da9052/da9052.h: In function 'da9052_group_read': /kisskb/src/include/linux/mfd/da9052/da9052.h:143:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/scsi/aacraid/src.c: In function 'aac_src_intr_message': /kisskb/src/drivers/scsi/aacraid/src.c:84:4: warning: 'bellbits' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88472.c: In function 'mn88472_set_frontend': /kisskb/src/drivers/media/dvb-frontends/mn88472.c:330:27: warning: 'bandwidth_vals_ptr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88472.c:311:20: warning: 'bandwidth_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/media/dvb-frontends/mn88473.c: In function 'mn88473_set_frontend': /kisskb/src/drivers/media/dvb-frontends/mn88473.c:147:21: warning: 'conf_val_ptr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_zone_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:600:32: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_bl_ambient_light_level_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:578:10: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c:578:10: warning: 'ret_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/video/backlight/adp8860_bl.c: In function 'adp8860_show': /kisskb/src/drivers/video/backlight/adp8860_bl.c:442:16: warning: 'reg_val' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_connector_check': /kisskb/src/drivers/gpu/drm/drm_atomic.c:426:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/usb/misc/usbtest.c: In function 'test_queue': /kisskb/src/drivers/usb/misc/usbtest.c:2148:1: warning: the frame size of 1248 bytes is larger than 1024 bytes [-Wframe-larger-than=] Completed OK # rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc4.6 # Build took: 0:03:40.318556
© Michael Ellerman 2006-2018.