# git rev-parse -q --verify 5a3840a470c41ec0b85cd36ca80370330656b163^{commit}
5a3840a470c41ec0b85cd36ca80370330656b163
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5a3840a470c41ec0b85cd36ca80370330656b163
# git clean -qxdf
# < git log -1
# commit 5a3840a470c41ec0b85cd36ca80370330656b163
# Author: Oliver O'Halloran <oohall@gmail.com>
# Date:   Thu Jan 31 12:53:47 2019 +1100
# 
#     powerpc/papr_scm: Use the correct bind address
#     
#     When binding an SCM volume to a physical address the hypervisor has the
#     option to return early with a continue token with the expectation that
#     the guest will resume the bind operation until it completes. A quirk of
#     this interface is that the bind address will only be returned by the
#     first bind h-call and the subsequent calls will return
#     0xFFFF_FFFF_FFFF_FFFF for the bind address.
#     
#     We currently do not save the address returned by the first h-call. As a
#     result we will use the junk address as the base of the bound region if
#     the hypervisor decides to split the bind across multiple h-calls. This
#     bug was found when testing with very large SCM volumes where the bind
#     process would take more time than they hypervisor's internal h-call time
#     limit would allow. This patch fixes the issue by saving the bind address
#     from the first call.
#     
#     Cc: stable@vger.kernel.org
#     Fixes: b5beae5e224f ("powerpc/pseries: Add driver for PAPR SCM regions")
#     Signed-off-by: Oliver O'Halloran <oohall@gmail.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
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 5a3840a470c41ec0b85cd36ca80370330656b163
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/currituck_defconfig

WARNING: unmet direct dependencies detected for PPC4xx_PCI_EXPRESS
  Depends on [n]: PCI [=n] && 4xx [=y]
  Selected by [y]:
  - CURRITUCK [=y] && PPC_47x [=y]

WARNING: unmet direct dependencies detected for PPC4xx_PCI_EXPRESS
  Depends on [n]: PCI [=n] && 4xx [=y]
  Selected by [y]:
  - CURRITUCK [=y] && PPC_47x [=y]

WARNING: unmet direct dependencies detected for PPC4xx_PCI_EXPRESS
  Depends on [n]: PCI [=n] && 4xx [=y]
  Selected by [y]:
  - CURRITUCK [=y] && PPC_47x [=y]
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc4.6 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:186:16: 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:152:32: warning: 'levelspread[<U1d20>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U1d20>]' was declared here
/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/kernel/trace/trace_dynevent.c: In function 'create_dyn_event':
/kisskb/src/kernel/trace/trace_dynevent.c:89:5: warning: 'ret' 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/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/arch/powerpc/boot/dts/currituck.dts:125.28-161.5: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/currituck.dts:163.28-198.5: Warning (pci_bridge): /plb/pciex@30100000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/currituck.dts:200.28-235.5: Warning (pci_bridge): /plb/pciex@38100000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc4.6
# Build took: 0:00:47.733010