Buildresult: powerpc-fixes/arm64-defconfig/arm64-gcc5 built on Feb 9 2020, 00:01

kisskb

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Status:	OK
Date/Time:	Feb 9 2020, 00:01
Duration:	0:04:53.283134
Builder:	ka3
Revision:	powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK (`d4bf905307a1c90a27714ff7a9fd29b0a2ceed98)`
Target:	powerpc-fixes/arm64-defconfig/arm64-gcc5
Branch:	powerpc-fixes
Compiler:	arm64-gcc5 (aarch64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0 / GNU ld (GNU Binutils) 2.25.1)
Config:	defconfig (download)
Log:	Download original Possible warnings (2) include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] Full Log # git rev-parse -q --verify d4bf905307a1c90a27714ff7a9fd29b0a2ceed98^{commit} d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 already have revision, skipping fetch # git checkout -q -f -B kisskb d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # git clean -qxdf # < git log -1 # commit d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Fri Feb 7 17:20:57 2020 +0000 # # powerpc: Fix CONFIG_TRACE_IRQFLAGS with CONFIG_VMAP_STACK # # When CONFIG_PROVE_LOCKING is selected together with (now default) # CONFIG_VMAP_STACK, kernel enter deadlock during boot. # # At the point of checking whether interrupts are enabled or not, the # value of MSR saved on stack is read using the physical address of the # stack. But at this point, when using VMAP stack the DATA MMU # translation has already been re-enabled, leading to deadlock. # # Don't use the physical address of the stack when # CONFIG_VMAP_STACK is set. # # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Reported-by: Guenter Roeck <linux@roeck-us.net> # Fixes: 028474876f47 ("powerpc/32: prepare for CONFIG_VMAP_STACK") # Tested-by: Guenter Roeck <linux@roeck-us.net> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/daeacdc0dec0416d1c587cc9f9e7191ad3068dc0.1581095957.git.christophe.leroy@c-s.fr # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 d4bf905307a1c90a27714ff7a9fd29b0a2ceed98 # < make -s -j 80 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- defconfig # make -s -j 80 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux- arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum arch/arm64/Makefile:35: LSE atomics not supported by binutils In file included from /kisskb/src/include/linux/rwsem.h:16:0, from /kisskb/src/include/linux/notifier.h:15, from /kisskb/src/include/linux/clk.h:14, from /kisskb/src/drivers/tty/serial/sh-sci.c:20: /kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_dma_rx_submit': /kisskb/src/include/linux/spinlock.h:288:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] _raw_spin_unlock_irqrestore(lock, flags); \ ^ /kisskb/src/drivers/tty/serial/sh-sci.c:1348:16: note: 'flags' was declared here unsigned long flags; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wmaybe-uninitialized] pd->msg->buf[real_pos] = data; ^ /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:372:16: note: 'data' was declared here unsigned char data; ^ Completed OK # rm -rf /kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 # Build took: 0:04:53.283134

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