# 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/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 5a3840a470c41ec0b85cd36ca80370330656b163
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts:46.9-50.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-gru-bob.dts:25.9-29.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
/kisskb/src/arch/arm64/boot/dts/rockchip/rk3399-sapphire-excavator.dts:94.9-98.5: Warning (graph_port): /edp-panel/ports: graph port node name should be 'port'
In file included from /kisskb/src/include/linux/rwsem.h:16:0,
                 from /kisskb/src/include/linux/notifier.h:15,
                 from /kisskb/src/include/linux/clk.h:17,
                 from /kisskb/src/drivers/tty/serial/sh-sci.c:24:
/kisskb/src/drivers/tty/serial/sh-sci.c: In function 'sci_submit_rx':
/kisskb/src/include/linux/spinlock.h:279:3: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized]
   _raw_spin_unlock_irqrestore(lock, flags); \
   ^
/kisskb/src/drivers/tty/serial/sh-sci.c:1338:16: note: 'flags' was declared here
  unsigned long flags;
                ^
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_arm64-defconfig_arm64-gcc5.4
# Build took: 0:03:42.873309