# git rev-parse -q --verify 41a808618879dc28fb0a94b08db4b55790eb7827^{commit}
41a808618879dc28fb0a94b08db4b55790eb7827
already have revision, skipping fetch
# git checkout -q -f -B kisskb 41a808618879dc28fb0a94b08db4b55790eb7827
# git clean -qxdf
# < git log -1
# commit 41a808618879dc28fb0a94b08db4b55790eb7827
# Author: Alexey Kardashevskiy <aik@ozlabs.ru>
# Date:   Tue May 7 16:25:59 2019 +1000
# 
#     powerpc/pseries/dma: Enable SWIOTLB
#     
#     So far the pseries platforms has always been using IOMMU making
#     SWIOTLB unnecessary. Now we want secure guests which means devices can
#     only access certain areas of guest physical memory; we are going to
#     use SWIOTLB for this purpose.
#     
#     This allows SWIOTLB for pseries. By default there is no change in
#     behavior.
#     
#     This enables SWIOTLB when the "swiotlb" kernel parameter is set to
#     "force".
#     
#     With the SWIOTLB enabled, the kernel creates a directly mapped DMA
#     window (using the usual DDW mechanism) and implements SWIOTLB on top
#     of that.
#     
#     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/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 41a808618879dc28fb0a94b08db4b55790eb7827
# < make -s -j 24 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# make -s -j 24 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  
/kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' 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:331:21: note: 'pdeo' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2077:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1465:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/fork.c:768:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function]
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1406:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c:881:14: note: 'extra_uref' was declared here
/kisskb/src/net/ipv4/fib_semantics.c: In function 'fib_check_nh_v4_gw':
/kisskb/src/net/ipv4/fib_semantics.c:1027:12: warning: 'err' may be used uninitialized in this function [-Wuninitialized]
No errors detected in 21387 functions.
  Kernel: vmlinux.gz is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64
# Build took: 0:02:22.644336