# git rev-parse -q --verify 6ccb4ac2bf8a35c694ead92f8ac5530a16e8f2c8^{commit}
6ccb4ac2bf8a35c694ead92f8ac5530a16e8f2c8
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6ccb4ac2bf8a35c694ead92f8ac5530a16e8f2c8
# git clean -qxdf
# < git log -1
# commit 6ccb4ac2bf8a35c694ead92f8ac5530a16e8f2c8
# Author: Greg Kurz <groug@kaod.org>
# Date:   Wed Sep 11 17:52:18 2019 +0200
# 
#     powerpc/xive: Fix bogus error code returned by OPAL
#     
#     There's a bug in skiboot that causes the OPAL_XIVE_ALLOCATE_IRQ call
#     to return the 32-bit value 0xffffffff when OPAL has run out of IRQs.
#     Unfortunatelty, OPAL return values are signed 64-bit entities and
#     errors are supposed to be negative. If that happens, the linux code
#     confusingly treats 0xffffffff as a valid IRQ number and panics at some
#     point.
#     
#     A fix was recently merged in skiboot:
#     
#     e97391ae2bb5 ("xive: fix return value of opal_xive_allocate_irq()")
#     
#     but we need a workaround anyway to support older skiboots already
#     in the field.
#     
#     Internally convert 0xffffffff to OPAL_RESOURCE which is the usual error
#     returned upon resource exhaustion.
#     
#     Cc: stable@vger.kernel.org # v4.12+
#     Signed-off-by: Greg Kurz <groug@kaod.org>
#     Reviewed-by: Cédric Le Goater <clg@kaod.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/156821713818.1985334.14123187368108582810.stgit@bahia.lan
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-ld --version
# < git log --format=%s --max-count=1 6ccb4ac2bf8a35c694ead92f8ac5530a16e8f2c8
# < make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/fork.c:771:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function]
/kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:90:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1465:5: warning: 'page' 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/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2065:9: warning: 'str' 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/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:613:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
No errors detected in 21596 functions.
  Kernel: vmlinux.gz is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64
# Build took: 0:02:04.923983