# git rev-parse -q --verify 8bc086899816214fbc6047c9c7e15fcab49552bf^{commit}
8bc086899816214fbc6047c9c7e15fcab49552bf
already have revision, skipping fetch
# git checkout -q -f -B kisskb 8bc086899816214fbc6047c9c7e15fcab49552bf
# git clean -qxdf
# < git log -1
# commit 8bc086899816214fbc6047c9c7e15fcab49552bf
# Author: Ben Hutchings <ben@decadent.org.uk>
# Date:   Sun Mar 17 01:17:56 2019 +0000
# 
#     powerpc/mm: Only define MAX_PHYSMEM_BITS in SPARSEMEM configurations
#     
#     MAX_PHYSMEM_BITS only needs to be defined if CONFIG_SPARSEMEM is
#     enabled, and that was the case before commit 4ffe713b7587
#     ("powerpc/mm: Increase the max addressable memory to 2PB").
#     
#     On 32-bit systems, where CONFIG_SPARSEMEM is not enabled, we now
#     define it as 46.  That is larger than the real number of physical
#     address bits, and breaks calculations in zsmalloc:
#     
#       mm/zsmalloc.c:130:49: warning: right shift count is negative
#         MAX(32, (ZS_MAX_PAGES_PER_ZSPAGE << PAGE_SHIFT >> OBJ_INDEX_BITS))
#                                                        ^~
#       ...
#       mm/zsmalloc.c:253:21: error: variably modified 'size_class' at file scope
#         struct size_class *size_class[ZS_SIZE_CLASSES];
#                            ^~~~~~~~~~
#     
#     Fixes: 4ffe713b7587 ("powerpc/mm: Increase the max addressable memory to 2PB")
#     Cc: stable@vger.kernel.org # v4.20+
#     Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
#     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 8bc086899816214fbc6047c9c7e15fcab49552bf
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ge_imp3a_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  85xx/ge_imp3a_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_85xx_ge_imp3a_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/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:140:32: warning: 'levelspread[<Ufa00>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<Ufa00>]' was declared here
/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/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2594:6: warning: 'ret' 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:1855:6: warning: 'ret' 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/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized]
/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]
/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/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1845:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1755:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
INFO: Uncompressed kernel (size 0x840154) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x900000)
Image Name:   Linux-5.1.0-rc1-g8bc086899816
Created:      Thu Mar 21 01:01:48 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4234224 Bytes = 4134.98 KiB = 4.04 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_85xx_ge_imp3a_defconfig_powerpc-gcc4.6
# Build took: 0:00:32.985292