Buildresult: linus/ip22_defconfig/mips-gcc8 built on Feb 21, 08:16

kisskb

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Status:	OK
Date/Time:	Feb 21, 08:16
Duration:	0:02:53.353712
Builder:	alpine1
Revision:	drm/tests/drm_buddy: fix build failure on 32-bit targets (`fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52)`
Target:	linus/ip22_defconfig/mips-gcc8
Branch:	linus
Compiler:	mips-gcc8 (mips-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	ip22_defconfig (download)
Log:	Download original Possible warnings (6) arch/mips/sgi-ip22/ip22-time.c:119:18: warning: no previous prototype for 'indy_8254timer_irq' [-Wmissing-prototypes] arch/mips/sgi-ip22/ip22-berr.c:89:6: warning: no previous prototype for 'ip22_be_interrupt' [-Wmissing-prototypes] arch/mips/sgi-ip22/ip22-berr.c:113:13: warning: no previous prototype for 'ip22_be_init' [-Wmissing-prototypes] arch/mips/sgi-ip22/ip22-gio.c:249:6: warning: no previous prototype for 'ip22_gio_set_64bit' [-Wmissing-prototypes] arch/mips/sgi-ip22/ip22-gio.c:398:12: warning: no previous prototype for 'ip22_gio_init' [-Wmissing-prototypes] drivers/scsi/sgiwd93.c:173:6: warning: no previous prototype for 'sgiwd93_reset' [-Wmissing-prototypes] Full Log # git rev-parse -q --verify fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52^{commit} fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52 already have revision, skipping fetch # git checkout -q -f -B kisskb fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52 # git clean -qxdf # < git log -1 # commit fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Feb 20 12:16:47 2024 -0800 # # drm/tests/drm_buddy: fix build failure on 32-bit targets # # Guenter Roeck reports that commit a64056bb5a32 ("drm/tests/drm_buddy: # add alloc_contiguous test") causes build failures on 32-bit targets: # # "This patch breaks the build on all 32-bit systems since it introduces # an unhandled direct 64-bit divide operation. # # ERROR: modpost: "__umoddi3" [drivers/gpu/drm/tests/drm_buddy_test.ko] undefined! # ERROR: modpost: "__moddi3" [drivers/gpu/drm/tests/drm_buddy_test.ko] undefined!" # # and the uses of 'u64' are all entirely pointless. Yes, the arguments to # drm_buddy_init() and drm_buddy_alloc_blocks() are in fact of type 'u64', # but none of the values here are remotely relevant, and the compiler will # happily just do the type expansion. # # Of course, in a perfect world the compiler would also have just noticed # that all the values in question are tiny, and range analysis would have # shown that doing a 64-bit divide is pointless, but that is admittedly # expecting a fair amount of the compiler. # # IOW, we shouldn't write code that the compiler then has to notice is # unnecessarily complicated just to avoid extra work. We do have fairly # high expectations of compilers, but kernel code should be reasonable to # begin with. # # It turns out that there are also other issues with this code: the KUnit # assertion messages have incorrect types in the format strings, but # that's a widely spread issue caused by the KUnit infrastructure not # having enabled format string verification. We'll get that sorted out # separately. # # Reported-by: Guenter Roeck <linux@roeck-us.net> # Fixes: a64056bb5a32 ("drm/tests/drm_buddy: add alloc_contiguous test") # Link: https://lore.kernel.org/all/538327ff-8d34-41d5-a9ae-1a334744f5ae@roeck-us.net/ # Cc: Matthew Auld <matthew.auld@intel.com> # Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> # Cc: Christian König <christian.koenig@amd.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 fca7526b7d8910c6125cb1ebc3e78ccd5f50ec52 # make -s -j 160 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- ip22_defconfig # < make -s -j 160 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 160 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 160 ARCH=mips O=/kisskb/build/linus_ip22_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/sgi-ip22/ip22-time.c:119:18: warning: no previous prototype for 'indy_8254timer_irq' [-Wmissing-prototypes] void __irq_entry indy_8254timer_irq(void) ^~~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sgi-ip22/ip22-berr.c:89:6: warning: no previous prototype for 'ip22_be_interrupt' [-Wmissing-prototypes] void ip22_be_interrupt(int irq) ^~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sgi-ip22/ip22-berr.c:113:13: warning: no previous prototype for 'ip22_be_init' [-Wmissing-prototypes] void __init ip22_be_init(void) ^~~~~~~~~~~~ /kisskb/src/arch/mips/sgi-ip22/ip22-gio.c:249:6: warning: no previous prototype for 'ip22_gio_set_64bit' [-Wmissing-prototypes] void ip22_gio_set_64bit(int slotno) ^~~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sgi-ip22/ip22-gio.c:398:12: warning: no previous prototype for 'ip22_gio_init' [-Wmissing-prototypes] int __init ip22_gio_init(void) ^~~~~~~~~~~~~ /kisskb/src/drivers/scsi/sgiwd93.c:173:6: warning: no previous prototype for 'sgiwd93_reset' [-Wmissing-prototypes] void sgiwd93_reset(unsigned long base) ^~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus_ip22_defconfig_mips-gcc8 # Build took: 0:02:53.353712

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