# 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/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 7a3a4d763837d3aa654cd1059030950410c04d77
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ppc40x_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-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/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:187:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:337:21: note: 'pdeo' was declared here
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here
/kisskb/src/net/sunrpc/xprtsock.c: In function 'xs_stream_data_receive_workfn':
/kisskb/src/net/sunrpc/xprtsock.c:529:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sunrpc/xprtsock.c:499:10: note: 'ret' was declared here
/kisskb/src/net/sunrpc/xprtsock.c:529:2: warning: 'read' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/sunrpc/xprtsock.c:498:15: note: 'read' was declared here
/kisskb/src/fs/fs_parser.c: In function 'fs_validate_description':
/kisskb/src/fs/fs_parser.c:413:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat]
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x545088) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 01:27:57 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2681318 Bytes = 2618.47 KiB = 2.56 MiB
Load Address: 00000000
Entry Point:  00000000
INFO: Uncompressed kernel (size 0x5556fc) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x600000)
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 01:27:57 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2714712 Bytes = 2651.09 KiB = 2.59 MiB
Load Address: 00600000
Entry Point:  00601758
Image Name:   Linux-5.1.0-rc2-g7a3a4d763837
Created:      Thu Apr 18 01:27:57 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2715241 Bytes = 2651.60 KiB = 2.59 MiB
Load Address: 00600000
Entry Point:  006019cc
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ppc40x_defconfig_powerpc-gcc4.6
# Build took: 0:00:25.279204