# git rev-parse -q --verify 194dc870a5890e855ecffb30f3b80ba7c88f96d6^{commit}
194dc870a5890e855ecffb30f3b80ba7c88f96d6
already have revision, skipping fetch
# git checkout -q -f -B kisskb 194dc870a5890e855ecffb30f3b80ba7c88f96d6
# git clean -qxdf
# git log -1
commit 194dc870a5890e855ecffb30f3b80ba7c88f96d6
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Wed Jul 27 20:03:31 2016 -0700

    Add braces to avoid "ambiguous ‘else’" compiler warnings
    
    Some of our "for_each_xyz()" macro constructs make gcc unhappy about
    lack of braces around if-statements inside or outside the loop, because
    the loop construct itself has a "if-then-else" statement inside of it.
    
    The resulting warnings look something like this:
    
      drivers/gpu/drm/i915/i915_debugfs.c: In function ‘i915_dump_lrc’:
      drivers/gpu/drm/i915/i915_debugfs.c:2103:6: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses]
         if (ctx != dev_priv->kernel_context)
            ^
    
    even if the code itself is fine.
    
    Since the warning is fairly easy to avoid by adding a braces around the
    if-statement near the for_each_xyz() construct, do so, rather than
    disabling the otherwise potentially useful warning.
    
    (The if-then-else statements used in the "for_each_xyz()" constructs are
    designed to be inherently safe even with no braces, but in this case
    it's quite understandable that gcc isn't really able to tell that).
    
    This finally leaves the standard "allmodconfig" build with just a
    handful of remaining warnings, so new and valid warnings hopefully will
    stand out.
    
    Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < git log --format=%s --max-count=1 194dc870a5890e855ecffb30f3b80ba7c88f96d6
# < make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_arm-randconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  randconfig
KCONFIG_SEED=0x741E57A0
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# yes \n | make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_arm-randconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_arm-randconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
make[1]: Entering directory '/home/kisskb/slave/build/linus_arm-randconfig_arm'
  GEN     ./Makefile
scripts/kconfig/conf  --silentoldconfig Kconfig
  CHK     include/config/kernel.release
Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
/home/kisskb/slave/src/Makefile:1056: recipe for target 'prepare-compiler-check' failed
make[1]: *** [prepare-compiler-check] Error 1
make[1]: *** Waiting for unfinished jobs....
  UPD     include/config/kernel.release
make[1]: *** wait: No child processes.  Stop.
Makefile:150: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -j 48 ARCH=arm O=/home/kisskb/slave/build/linus_arm-randconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  ' returned non-zero exit status 2
# rm -rf /home/kisskb/slave/build/linus_arm-randconfig_arm
# Build took: 0:00:03.597148