Buildresult: linus/ip22_defconfig/mips-gcc4.6 built on Oct 3 2019, 14:24

kisskb

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Status:	Failed
Date/Time:	Oct 3 2019, 14:24
Duration:	0:00:42.398017
Builder:	ka4
Revision:	timer-of: don't use conditional expression with mixed 'void' types (`0f1a7b3fac0583083ca19d4de47403511ced3521)`
Target:	linus/ip22_defconfig/mips-gcc4.6
Branch:	linus
Compiler:	mips-gcc4.6 (mips-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	ip22_defconfig (download)
Log:	Download original Possible errors /kisskb/build/tmp/ccBLtpSA.s:513: Error: can't resolve `_start' {UND section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:727: Error: can't resolve `_start' {UND section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:1058: Error: can't resolve `_start' {UND section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:1279: Error: can't resolve `_start' {UND section} - `L0' {.text section} make[3]: * [scripts/Makefile.build:266: arch/mips/vdso/vgettimeofday.o] Error 1 make[2]: * [scripts/Makefile.build:509: arch/mips/vdso] Error 2 make[1]: * [Makefile:1670: arch/mips] Error 2 make: * [Makefile:179: sub-make] Error 2 Possible warnings (4) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' 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 0f1a7b3fac0583083ca19d4de47403511ced3521^{commit} 0f1a7b3fac0583083ca19d4de47403511ced3521 already have revision, skipping fetch # git checkout -q -f -B kisskb 0f1a7b3fac0583083ca19d4de47403511ced3521 # git clean -qxdf # < git log -1 # commit 0f1a7b3fac0583083ca19d4de47403511ced3521 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Wed Oct 2 16:16:07 2019 -0700 # # timer-of: don't use conditional expression with mixed 'void' types # # Randy Dunlap reports on the sparse list that sparse warns about this # expression: # # of_irq->percpu ? free_percpu_irq(of_irq->irq, clkevt) : # free_irq(of_irq->irq, clkevt); # # and honestly, sparse is correct to warn. The return type of # free_percpu_irq() is 'void', while free_irq() returns a 'const void ' # that is the devname argument passed in to the request_irq(). # # You can't mix a void type with a non-void types in a conditional # expression according to the C standard. It so happens that gcc seems to # accept it - and the resulting type of the expression is void - but # there's really no reason for the kernel to have this kind of # non-standard expression with no real upside. # # The natural way to write that expression is with an if-statement: # # if (of_irq->percpu) # free_percpu_irq(of_irq->irq, clkevt); # else # free_irq(of_irq->irq, clkevt); # # which is more legible anyway. # # I'm not sure why that timer-of code seems to have this odd pattern. It # does the same at allocation time, but at least there the types match, # and it makes sense as an expression. # # Reported-by: Randy Dunlap <rdunlap@infradead.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 0f1a7b3fac0583083ca19d4de47403511ced3521 # < make -s -j 10 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- ip22_defconfig # make -s -j 10 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/vdso/Makefile:61: MIPS VDSO requires binutils >= 2.25 <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /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/arch/mips/vdso/Makefile:61: MIPS VDSO requires binutils >= 2.25 /kisskb/build/tmp/ccBLtpSA.s: Assembler messages: /kisskb/build/tmp/ccBLtpSA.s:513: Error: can't resolve `_start' {UND* section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:727: Error: can't resolve `_start' {UND section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:1058: Error: can't resolve `_start' {UND section} - `L0' {.text section} /kisskb/build/tmp/ccBLtpSA.s:1279: Error: can't resolve `_start' {UND section} - `L0' {.text section} make[3]: * [/kisskb/src/scripts/Makefile.build:266: arch/mips/vdso/vgettimeofday.o] Error 1 make[2]: * [/kisskb/src/scripts/Makefile.build:509: arch/mips/vdso] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1670: arch/mips] Error 2 make[1]: * Waiting for unfinished jobs.... /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/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] make: * [Makefile:179: sub-make] Error 2 Command 'make -s -j 10 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/mips-linux/bin/mips-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_ip22_defconfig_mips # Build took: 0:00:42.398017

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