Buildresult: powerpc-next/ppc64_defconfig+NO_ALTIVEC/powerpc-gcc4.6 built on Nov 19 2019, 22:51

kisskb

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Status:	OK
Date/Time:	Nov 19 2019, 22:51
Duration:	0:01:39.506125
Builder:	ka4
Revision:	powerpc/powernv: Disable native PCIe port management (`cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02)`
Target:	powerpc-next/ppc64_defconfig+NO_ALTIVEC/powerpc-gcc4.6
Branch:	powerpc-next
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	ppc64_defconfig+NO_ALTIVEC (download)
Log:	Download original Possible warnings (13) kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] net/bridge/br_netlink.c:648:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] mm/hugetlb.c:1497:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] net/core/devlink.c:4484:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized] fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02^{commit} cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02 already have revision, skipping fetch # git checkout -q -f -B kisskb cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02 # git clean -qxdf # < git log -1 # commit cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02 # Author: Oliver O'Halloran <oohall@gmail.com> # Date: Mon Nov 18 17:55:53 2019 +1100 # # powerpc/powernv: Disable native PCIe port management # # On PowerNV the PCIe topology is (currently) managed by the powernv platform # code in Linux in cooperation with the platform firmware. Linux's native # PCIe port service drivers operate independently of both and this can cause # problems. # # The main issue is that the portbus driver will conflict with the platform # specific hotplug driver (pnv_php) over ownership of the MSI used to notify # the host when a hotplug event occurs. The portbus driver claims this MSI on # behalf of the individual port services because the same interrupt is used # for hotplug events, PMEs (on root ports), and link bandwidth change # notifications. The portbus driver will always claim the interrupt even if # the individual port service drivers, such as pciehp, are compiled out. # # The second, bigger, problem is that the hotplug port service driver # fundamentally does not work on PowerNV. The platform assumes that all # PCI devices have a corresponding arch-specific handle derived from the DT # node for the device (pci_dn) and without one the platform will not allow # a PCI device to be enabled. This problem is largely due to historical # baggage, but it can't be resolved without significant re-factoring of the # platform PCI support. # # We can fix these problems in the interim by setting the # "pcie_ports_disabled" flag during platform initialisation. The flag # indicates the platform owns the PCIe ports which stops the portbus driver # from being registered. # # This does have the side effect of disabling all port services drivers # that is: AER, PME, BW notifications, hotplug, and DPC. However, this is # not a huge disadvantage on PowerNV since these services are either unused # or handled through other means. # # Fixes: 66725152fb9f ("PCI/hotplug: PowerPC PowerNV PCI hotplug driver") # Signed-off-by: Oliver O'Halloran <oohall@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20191118065553.30362-1-oohall@gmail.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 cfe255e01d0d6bf2a23d46613c3d4cfe4505dd02 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- ppc64_defconfig # Added to kconfig CONFIG_ALTIVEC=n # Added to kconfig CONFIG_PPC_TRANSACTIONAL_MEM=n # yes \n \| make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_ALTIVEC_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:204:16: 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:2591:6: 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:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec.isra.30': /kisskb/src/net/bridge/br_netlink.c:648:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1497:5: 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/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb': /kisskb/src/net/core/devlink.c:4484:6: warning: 'err' 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/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/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' 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:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' 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] Completed OK # rm -rf /kisskb/build/powerpc-next_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc4.6 # Build took: 0:01:39.506125

© Michael Ellerman 2006-2018.