# git rev-parse -q --verify fc45f8974252b140023cdccc4a0907853c3ecec8^{commit}
# git fetch -q -n -f https://git.kernel.org/pub/scm/linux/kernel/git/sfr/linux.git test
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify fc45f8974252b140023cdccc4a0907853c3ecec8^{commit}
fc45f8974252b140023cdccc4a0907853c3ecec8
# git checkout -q -f -B kisskb fc45f8974252b140023cdccc4a0907853c3ecec8
# git clean -qxdf
# < git log -1
# commit fc45f8974252b140023cdccc4a0907853c3ecec8
# Author: Stephen Rothwell <sfr@canb.auug.org.au>
# Date:   Mon Jun 15 18:02:37 2020 +1000
# 
#     major.h: remove the remaining unnecessary includes of linux/major.h
#     
#     Now that very file that needs the definitions in major.h explicitly
#     includes it, this is just cleaning up.
#     
#     This is fairly safe because major.h does not include any other files.
#     The only real risk is if a symbol defined in major.h is constructed by
#     concatenation in the preprocessor.
#     
#     The actual change was done using the following command:
#     
#       sed -i -E '/[<"](uapi\/)?linux\/major\.h/d' \
#         $(grep -L -w -f xx \
#           $(git grep -E -l '[<"](uapi/)?linux/major\.h'))
#     
#     Where the file xx contians all the symbols defined in major.h
#     
#     (genhd.h was added by inspection.)
#     
#     The win here is really just the number of lines to be parsed by the
#     preprocessor.  major.h is 180 lines long and was being included by
#     these files unnecessarily.  In particular, there are 3 global include
#     files here (tty.h, genhd.h and blkdev.h) that are also included by 354,
#     68 and 554 other files, repectively.
#     
#     After this, major.h is only included by 4 global include files (which
#     are in turn included by 297 other files), so its indirect inclusion is
#     hopefully much reduced.
#     
#     Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 fc45f8974252b140023cdccc4a0907853c3ecec8
# < make -s -j 8 ARCH=ia64 O=/kisskb/build/sfr-test_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# < make -s -j 8 ARCH=ia64 O=/kisskb/build/sfr-test_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  help
# make -s -j 8 ARCH=ia64 O=/kisskb/build/sfr-test_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  olddefconfig
# make -s -j 8 ARCH=ia64 O=/kisskb/build/sfr-test_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0,
                 from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11,
                 from /kisskb/src/arch/ia64/include/asm/bitops.h:19,
                 from /kisskb/src/include/linux/bitops.h:29,
                 from /kisskb/src/include/linux/kernel.h:12,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/preempt.h:11,
                 from /kisskb/src/include/linux/spinlock.h:51,
                 from /kisskb/src/include/linux/seqlock.h:36,
                 from /kisskb/src/include/linux/time.h:6,
                 from /kisskb/src/fs/nfs/read.c:11:
/kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg'
     xchg(&nfs_req_openctx(req)->error, error);
     ^
/kisskb/src/fs/nfs/read.c: In function 'nfs_readpage':
/kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value]
 ((__typeof__(*(ptr))) __xchg((unsigned long) (x), (ptr), sizeof(*(ptr))))
  ^
/kisskb/src/fs/nfs/read.c:355:2: note: in expansion of macro 'xchg'
  xchg(&ctx->error, 0);
  ^
No errors detected in 22247 functions.
Completed OK
# rm -rf /kisskb/build/sfr-test_ia64-defconfig_ia64-gcc4.9
# Build took: 0:05:06.808034