Buildresult: linus/64r6_defconfig/mips-gcc13 built on Jul 27, 11:36

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Status:	OK
Date/Time:	Jul 27, 11:36
Duration:	0:01:35.833054
Builder:	ka7
Revision:	minmax: avoid overly complicated constant expressions in VM code (`3a7e02c040b130b5545e4b115aada7bacd80a2b6)`
Target:	linus/64r6_defconfig/mips-gcc13
Branch:	linus
Compiler:	mips-gcc13 (mips-linux-gcc (GCC) 13.1.0 / GNU ld (GNU Binutils) 2.40)
Config:	64r6_defconfig (download)
Log:	Download original Possible warnings (3) arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Full Log # git rev-parse -q --verify 3a7e02c040b130b5545e4b115aada7bacd80a2b6^{commit} 3a7e02c040b130b5545e4b115aada7bacd80a2b6 already have revision, skipping fetch # git checkout -q -f -B kisskb 3a7e02c040b130b5545e4b115aada7bacd80a2b6 # git clean -qxdf # < git log -1 # commit 3a7e02c040b130b5545e4b115aada7bacd80a2b6 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Fri Jul 26 15:32:27 2024 -0700 # # minmax: avoid overly complicated constant expressions in VM code # # The minmax infrastructure is overkill for simple constants, and can # cause huge expansions because those simple constants are then used by # other things. # # For example, 'pageblock_order' is a core VM constant, but because it was # implemented using 'min_t()' and all the type-checking that involves, it # actually expanded to something like 2.5kB of preprocessor noise. # # And when that simple constant was then used inside other expansions: # # #define pageblock_nr_pages (1UL << pageblock_order) # #define pageblock_start_pfn(pfn) ALIGN_DOWN((pfn), pageblock_nr_pages) # # and we then use that inside a 'max()' macro: # # case ISOLATE_SUCCESS: # update_cached = false; # last_migrated_pfn = max(cc->zone->zone_start_pfn, # pageblock_start_pfn(cc->migrate_pfn - 1)); # # the end result was that one statement expanding to 253kB in size. # # There are probably other cases of this, but this one case certainly # stood out. # # I've added 'MIN_T()' and 'MAX_T()' macros for this kind of "core simple # constant with specific type" use. These macros skip the type checking, # and as such need to be very sparingly used only for obvious cases that # have active issues like this. # # Reported-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> # Link: https://lore.kernel.org/all/36aa2cad-1db1-4abf-8dd2-fb20484aabc3@lucifer.local/ # Cc: David Laight <David.Laight@aculab.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 3a7e02c040b130b5545e4b115aada7bacd80a2b6 # make -s -j 32 ARCH=mips O=/kisskb/build/linus_64r6_defconfig_mips-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux- 64r6_defconfig Using /kisskb/src/arch/mips/configs/generic_defconfig as base Merging /kisskb/src/arch/mips/configs/generic/64r6.config Merging /kisskb/src/arch/mips/configs/generic/eb.config Merging /kisskb/src/arch/mips/configs/generic/board-boston.config Merging /kisskb/src/arch/mips/configs/generic/board-litex.config Merging /kisskb/src/arch/mips/configs/generic/board-marduk.config Merging /kisskb/src/arch/mips/configs/generic/board-ranchu.config Merging /kisskb/src/arch/mips/configs/generic/board-virt.config # < make -s -j 32 ARCH=mips O=/kisskb/build/linus_64r6_defconfig_mips-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 32 ARCH=mips O=/kisskb/build/linus_64r6_defconfig_mips-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 32 ARCH=mips O=/kisskb/build/linus_64r6_defconfig_mips-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider /kisskb/src/arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/linus_64r6_defconfig_mips-gcc13 # Build took: 0:01:35.833054

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