# git rev-parse -q --verify 7a3a4d763837d3aa654cd1059030950410c04d77^{commit}
7a3a4d763837d3aa654cd1059030950410c04d77
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7a3a4d763837d3aa654cd1059030950410c04d77
# git clean -qxdf
# < git log -1
# commit 7a3a4d763837d3aa654cd1059030950410c04d77
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Wed Apr 3 15:12:33 2019 +1100
# 
#     powerpc/mm_iommu: Allow pinning large regions
#     
#     When called with vmas_arg==NULL, get_user_pages_longterm() allocates
#     an array of nr_pages*8 which can easily get greater that the max order,
#     for example, registering memory for a 256GB guest does this and fails
#     in __alloc_pages_nodemask().
#     
#     This adds a loop over chunks of entries to fit the max order limit.
#     
#     Fixes: 678e174c4c16 ("powerpc/mm/iommu: allow migration of cma allocated pages during mm_iommu_do_alloc", 2019-03-05)
#     Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 7a3a4d763837d3aa654cd1059030950410c04d77
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  mpc5200_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages:
/kisskb/src/arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression
/kisskb/src/net/sunrpc/xprtsock.c: In function 'xs_stream_data_receive_workfn':
/kisskb/src/net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
  size_t want, read;
               ^
/kisskb/src/net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ret < 0 ? ret : read;
         ^
/kisskb/src/net/sunrpc/xprtsock.c:499:10: note: 'ret' was declared here
  ssize_t ret;
          ^
In file included from /kisskb/src/include/linux/printk.h:7:0,
                 from /kisskb/src/include/linux/kernel.h:15,
                 from /kisskb/src/include/linux/fs_context.h:15,
                 from /kisskb/src/fs/fs_parser.c:13:
/kisskb/src/fs/fs_parser.c: In function 'fs_validate_description':
/kisskb/src/include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/kisskb/src/include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^
/kisskb/src/include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         ^
/kisskb/src/fs/fs_parser.c:413:6: note: in expansion of macro 'pr_err'
      pr_err("VALIDATE %s: e[%lu] enum val for %s\n",
      ^
INFO: Uncompressed kernel (size 0x6d0300) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
INFO: Uncompressed kernel (size 0x6d0300) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
INFO: Uncompressed kernel (size 0x6d0300) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
INFO: Uncompressed kernel (size 0x6bfc1c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x700000)
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 02:14:29 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    3452055 Bytes = 3371.15 KiB = 3.29 MiB
Load Address: 00000000
Entry Point:  00000000
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 02:14:29 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    3481208 Bytes = 3399.62 KiB = 3.32 MiB
Load Address: 00700000
Entry Point:  00700284
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 02:14:29 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    3481455 Bytes = 3399.86 KiB = 3.32 MiB
Load Address: 00700000
Entry Point:  00700284
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 02:14:29 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    3481444 Bytes = 3399.85 KiB = 3.32 MiB
Load Address: 00700000
Entry Point:  00700284
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mpc5200_defconfig_powerpc-gcc5
# Build took: 0:01:10.627962