# git rev-parse -q --verify 22db552b50fa11d8c1d171de908a1f9ef62172b7^{commit}
22db552b50fa11d8c1d171de908a1f9ef62172b7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 22db552b50fa11d8c1d171de908a1f9ef62172b7
# git clean -qxdf
# < git log -1
# commit 22db552b50fa11d8c1d171de908a1f9ef62172b7
# Author: Arnd Bergmann <arnd@arndb.de>
# Date:   Tue Jun 19 16:02:27 2018 +0200
# 
#     powerpc/powermac: Fix rtc read/write functions
#     
#     As Mathieu pointed out, my conversion to time64_t was incorrect and
#     resulted in negative times to be read from the RTC. The problem is
#     that during the conversion from a byte array to a time64_t, the
#     'unsigned char' variable holding the top byte gets turned into a
#     negative signed 32-bit integer before being assigned to the 64-bit
#     variable for any times after 1972.
#     
#     This changes the logic to cast to an unsigned 32-bit number first for
#     the Macintosh time and then convert that to the Unix time, which then
#     gives us a time in the documented 1904..2040 year range. I decided not
#     to use the longer 1970..2106 range that other drivers use, for
#     consistency with the literal interpretation of the register, but that
#     could be easily changed if we decide we want to support any Mac after
#     2040.
#     
#     Just to be on the safe side, I'm also adding a WARN_ON that will
#     trigger if either the year 2040 has come and is observed by this
#     driver, or we run into an RTC that got set back to a pre-1970 date for
#     some reason (the two are indistinguishable).
#     
#     For the RTC write functions, Andreas found another problem: both
#     pmu_request() and cuda_request() are varargs functions, so changing
#     the type of the arguments passed into them from 32 bit to 64 bit
#     breaks the API for the set_rtc_time functions. This changes it back to
#     32 bits.
#     
#     The same code exists in arch/m68k/ and is patched in an identical way
#     now in a separate patch.
#     
#     Fixes: 5bfd643583b2 ("powerpc: use time64_t in read_persistent_clock")
#     Reported-by: Mathieu Malaterre <malat@debian.org>
#     Reported-by: Andreas Schwab <schwab@linux-m68k.org>
#     Signed-off-by: Arnd Bergmann <arnd@arndb.de>
#     Tested-by: Mathieu Malaterre <malat@debian.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version
# < git log --format=%s --max-count=1 22db552b50fa11d8c1d171de908a1f9ef62172b7
# < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  defconfig
# make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/kisskb/src/mm/memblock.c:1340:15: error: redefinition of 'memblock_virt_alloc_try_nid_raw'
 void * __init memblock_virt_alloc_try_nid_raw(
               ^
In file included from /kisskb/src/mm/memblock.c:23:0:
/kisskb/src/include/linux/bootmem.h:332:29: note: previous definition of 'memblock_virt_alloc_try_nid_raw' was here
 static inline void * __init memblock_virt_alloc_try_nid_raw(
                             ^
/kisskb/src/mm/memblock.c:1377:15: error: redefinition of 'memblock_virt_alloc_try_nid_nopanic'
 void * __init memblock_virt_alloc_try_nid_nopanic(
               ^
In file included from /kisskb/src/mm/memblock.c:23:0:
/kisskb/src/include/linux/bootmem.h:340:29: note: previous definition of 'memblock_virt_alloc_try_nid_nopanic' was here
 static inline void * __init memblock_virt_alloc_try_nid_nopanic(
                             ^
/kisskb/src/mm/memblock.c:1413:15: error: redefinition of 'memblock_virt_alloc_try_nid'
 void * __init memblock_virt_alloc_try_nid(
               ^
In file included from /kisskb/src/mm/memblock.c:23:0:
/kisskb/src/include/linux/bootmem.h:325:29: note: previous definition of 'memblock_virt_alloc_try_nid' was here
 static inline void * __init memblock_virt_alloc_try_nid(phys_addr_t size,
                             ^
/kisskb/src/scripts/Makefile.build:317: recipe for target 'mm/memblock.o' failed
make[2]: *** [mm/memblock.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1034: recipe for target 'mm' failed
make[1]: *** [mm] Error 2
make[1]: *** Waiting for unfinished jobs....
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mipsel
# Build took: 0:01:38.013436