Buildresult: linus/x86_64-allnoconfig/x86_64-gcc4.6 built on Jan 16 2020, 17:59

kisskb

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Status:	OK
Date/Time:	Jan 16 2020, 17:59
Duration:	0:00:18.947227
Builder:	blade4b
Revision:	Fix built-in early-load Intel microcode alignment (`f5ae2ea6347a308cfe91f53b53682ce635497d0d)`
Target:	linus/x86_64-allnoconfig/x86_64-gcc4.6
Branch:	linus
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	allnoconfig (download)
Log:	Download original Possible warnings (3) arch/x86/kernel/apic/io_apic.c:1037:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/e820.c:665:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify f5ae2ea6347a308cfe91f53b53682ce635497d0d^{commit} f5ae2ea6347a308cfe91f53b53682ce635497d0d already have revision, skipping fetch # git checkout -q -f -B kisskb f5ae2ea6347a308cfe91f53b53682ce635497d0d # git clean -qxdf # < git log -1 # commit f5ae2ea6347a308cfe91f53b53682ce635497d0d # Author: Jari Ruusu <jari.ruusu@gmail.com> # Date: Sun Jan 12 15:00:53 2020 +0200 # # Fix built-in early-load Intel microcode alignment # # Intel Software Developer's Manual, volume 3, chapter 9.11.6 says: # # "Note that the microcode update must be aligned on a 16-byte boundary # and the size of the microcode update must be 1-KByte granular" # # When early-load Intel microcode is loaded from initramfs, userspace tool # 'iucode_tool' has already 16-byte aligned those microcode bits in that # initramfs image. Image that was created something like this: # # iucode_tool --write-earlyfw=FOO.cpio microcode-files... # # However, when early-load Intel microcode is loaded from built-in # firmware BLOB using CONFIG_EXTRA_FIRMWARE= kernel config option, that # 16-byte alignment is not guaranteed. # # Fix this by forcing all built-in firmware BLOBs to 16-byte alignment. # # [ If we end up having other firmware with much bigger alignment # requirements, we might need to introduce some method for the firmware # to specify it, this is the minimal "just increase the alignment a bit # to account for this one special case" patch - Linus ] # # Signed-off-by: Jari Ruusu <jari.ruusu@gmail.com> # Cc: Borislav Petkov <bp@alien8.de> # Cc: Fenghua Yu <fenghua.yu@intel.com> # Cc: Luis Chamberlain <mcgrof@kernel.org> # Cc: stable@kernel.org # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 f5ae2ea6347a308cfe91f53b53682ce635497d0d # < make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- /kisskb/src/tools/objtool /kisskb/src/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1037:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:665:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] /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] Completed OK # rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.6 # Build took: 0:00:18.947227

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