# git rev-parse -q --verify 13a83eac373c49c0a081cbcd137e79210fe78acd^{commit}
13a83eac373c49c0a081cbcd137e79210fe78acd
already have revision, skipping fetch
# git checkout -q -f -B kisskb 13a83eac373c49c0a081cbcd137e79210fe78acd
# git clean -qxdf
# < git log -1
# commit 13a83eac373c49c0a081cbcd137e79210fe78acd
# Author: Michael Neuling <mikey@neuling.org>
# Date:   Wed Apr 11 13:37:58 2018 +1000
# 
#     powerpc/eeh: Fix enabling bridge MMIO windows
#     
#     On boot we save the configuration space of PCIe bridges. We do this so
#     when we get an EEH event and everything gets reset that we can restore
#     them.
#     
#     Unfortunately we save this state before we've enabled the MMIO space
#     on the bridges. Hence if we have to reset the bridge when we come back
#     MMIO is not enabled and we end up taking an PE freeze when the driver
#     starts accessing again.
#     
#     This patch forces the memory/MMIO and bus mastering on when restoring
#     bridges on EEH. Ideally we'd do this correctly by saving the
#     configuration space writes later, but that will have to come later in
#     a larger EEH rewrite. For now we have this simple fix.
#     
#     The original bug can be triggered on a boston machine by doing:
#       echo 0x8000000000000000 > /sys/kernel/debug/powerpc/PCI0001/err_injct_outbound
#     On boston, this PHB has a PCIe switch on it.  Without this patch,
#     you'll see two EEH events, 1 expected and 1 the failure we are fixing
#     here. The second EEH event causes the anything under the PHB to
#     disappear (i.e. the i40e eth).
#     
#     With this patch, only 1 EEH event occurs and devices properly recover.
#     
#     Fixes: 652defed4875 ("powerpc/eeh: Check PCIe link after reset")
#     Cc: stable@vger.kernel.org # v3.11+
#     Reported-by: Pridhiviraj Paidipeddi <ppaidipe@linux.vnet.ibm.com>
#     Signed-off-by: Michael Neuling <mikey@neuling.org>
#     Acked-by: Russell Currey <ruscur@russell.cc>
#     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 13a83eac373c49c0a081cbcd137e79210fe78acd
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ps3_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ps3_defconfig
# make -s -j 8 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ps3_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/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/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1637:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<Ubdc0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<Ubdc0>]' was declared here
/kisskb/src/net/bluetooth/hidp/core.c: In function 'hidp_connection_add':
/kisskb/src/net/bluetooth/hidp/core.c:1378:18: warning: 'session' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/mpi/mpicoder.c: In function 'mpi_read_raw_from_sgl':
/kisskb/src/lib/mpi/mpicoder.c:352:8: warning: 'buff' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:149:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/flow_dissector.c: In function '__skb_flow_dissect':
/kisskb/src/net/core/flow_dissector.c:789:7: warning: 'vlan' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3176:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:269:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:234:28: note: 'next' was declared here
/kisskb/src/net/mac80211/tx.c: In function 'ieee80211_build_hdr':
/kisskb/src/net/mac80211/tx.c:2447:27: warning: 'chanctx_conf' 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:340:21: note: 'pdeo' was declared here
/kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1352:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1309:6: note: 'pwr_level_cisco' was declared here
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:157:15: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_ps3_defconfig_powerpc
# Build took: 0:01:33.509693