# git rev-parse -q --verify 5a43800ff4cb810a1a67e301a496335dd7c06935^{commit}
5a43800ff4cb810a1a67e301a496335dd7c06935
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5a43800ff4cb810a1a67e301a496335dd7c06935
# git clean -qxdf
# < git log -1
# commit 5a43800ff4cb810a1a67e301a496335dd7c06935
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Thu Oct 24 15:05:42 2019 +0530
# 
#     powerpc/book3s64/hash: Use secondary hash for bolted mapping if the primary is full
#     
#     With bolted hash page table entry, kernel currently only use primary hash group
#     when inserting the hash page table entry. In the rare case where kernel find all the
#     8 primary hash slot occupied by bolted entries, this can result in hash page
#     table insert failure for bolted entries. Avoid this by using the secondary hash
#     group.
#     
#     This is different from what kernel does for the non-bolted mapping. With
#     non-bolted entries kernel will try secondary before removing an existing entry
#     from hash page table group. With bolted prefer primary hash group and hence
#     try to insert the page table entry by removing a slot from primary before trying
#     the secondary hash group.
#     
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20191024093542.29777-3-aneesh.kumar@linux.ibm.com
# < /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 5a43800ff4cb810a1a67e301a496335dd7c06935
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ps3_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1712:59: warning: 'file' 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:204:16: warning: 'old' 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:140:32: warning: 'levelspread[<Uc6e0>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<Uc6e0>]' was declared here
/kisskb/src/net/bluetooth/hidp/core.c: In function 'hidp_connection_add':
/kisskb/src/net/bluetooth/hidp/core.c:1386:18: warning: 'session' 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:157:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/cifs/smb2pdu.c: In function 'SMB2_ioctl_init':
/kisskb/src/fs/cifs/smb2pdu.c:2703:19: warning: 'in_data_buf' 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/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3407:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' 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:338:21: note: 'pdeo' was declared here
/kisskb/src/net/mac80211/tx.c: In function 'ieee80211_build_hdr':
/kisskb/src/net/mac80211/tx.c:2519:27: warning: 'chanctx_conf' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/wireless/nl80211.c: In function 'nl80211_vendor_cmd_dump':
/kisskb/src/net/wireless/nl80211.c:13138:33: warning: 'wdev' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/wireless/nl80211.c:13108:21: warning: 'rdev' 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/net/mac80211/mlme.c: In function 'ieee80211_rx_mgmt_beacon':
/kisskb/src/net/mac80211/mlme.c:1576:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/mac80211/mlme.c:1533:6: note: 'pwr_level_cisco' was declared here
/kisskb/src/fs/splice.c: In function '__do_compat_sys_vmsplice':
/kisskb/src/fs/splice.c:1394:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/splice.c: In function '__do_sys_vmsplice':
/kisskb/src/fs/splice.c:1368:8: warning: 'type' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_ps3_defconfig_powerpc-gcc4.6
# Build took: 0:01:14.060572