# git rev-parse -q --verify b87b9cf4935325c98522823caeddd333022a1c62^{commit}
b87b9cf4935325c98522823caeddd333022a1c62
already have revision, skipping fetch
# git checkout -q -f -B kisskb b87b9cf4935325c98522823caeddd333022a1c62
# git clean -qxdf
# < git log -1
# commit b87b9cf4935325c98522823caeddd333022a1c62
# Author: Sam Bobroff <sbobroff@linux.ibm.com>
# Date:   Mon Jul 30 11:59:14 2018 +1000
# 
#     powerpc/pseries: fix EEH recovery of some IOV devices
#     
#     EEH recovery currently fails on pSeries for some IOV capable PCI
#     devices, if CONFIG_PCI_IOV is on and the hypervisor doesn't provide
#     certain device tree properties for the device. (Found on an IOV
#     capable device using the ipr driver.)
#     
#     Recovery fails in pci_enable_resources() at the check on r->parent,
#     because r->flags is set and r->parent is not.  This state is due to
#     sriov_init() setting the start, end and flags members of the IOV BARs
#     but the parent not being set later in
#     pseries_pci_fixup_iov_resources(), because the
#     "ibm,open-sriov-vf-bar-info" property is missing.
#     
#     Correct this by zeroing the resource flags for IOV BARs when they
#     can't be configured (this is the same method used by sriov_init() and
#     __pci_read_base()).
#     
#     VFs cleared this way can't be enabled later, because that requires
#     another device tree property, "ibm,number-of-configurable-vfs" as well
#     as support for the RTAS function "ibm_map_pes". These are all part of
#     hypervisor support for IOV and it seems unlikely that a hypervisor
#     would ever partially, but not fully, support it. (None are currently
#     provided by QEMU/KVM.)
#     
#     Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com>
#     Reviewed-by: Bryant G. Ly <bryantly@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 b87b9cf4935325c98522823caeddd333022a1c62
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/mpe-quick_g5_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  g5_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/mpe-quick_g5_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<Uc6e0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<Uc6e0>]' was declared here
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/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:339:21: note: 'pdeo' was declared here
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' 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:2046:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' 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/drivers/base/regmap/regmap.c: In function '_regmap_raw_write':
/kisskb/src/drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1835:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1745:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/mpe-quick_g5_defconfig_powerpc
# Build took: 0:00:36.830924