Buildresult: powerpc-next/powernv_defconfig/powerpc-gcc8 built on Nov 19 2019, 00:03

kisskb

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Status:	OK
Date/Time:	Nov 19 2019, 00:03
Duration:	0:03:50.235901
Builder:	blade46
Revision:	powerpc/powernv: Disable native PCIe port management (`be8d3292869350190dac9cd58c75bc005e3fd5c2)`
Target:	powerpc-next/powernv_defconfig/powerpc-gcc8
Branch:	powerpc-next
Compiler:	powerpc-gcc8 (powerpc64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	powernv_defconfig (download)
Log:	Download original Possible warnings (1) WARNING: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel() Full Log # git rev-parse -q --verify be8d3292869350190dac9cd58c75bc005e3fd5c2^{commit} be8d3292869350190dac9cd58c75bc005e3fd5c2 already have revision, skipping fetch # git checkout -q -f -B kisskb be8d3292869350190dac9cd58c75bc005e3fd5c2 # git clean -qxdf # < git log -1 # commit be8d3292869350190dac9cd58c75bc005e3fd5c2 # 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/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 be8d3292869350190dac9cd58c75bc005e3fd5c2 # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- powernv_defconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_powernv_defconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: vmlinux.o(.text+0x2fc8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel() The function start_here_common() references the function __init start_kernel(). This is often because start_here_common lacks a __init annotation or the annotation of start_kernel is wrong. Completed OK # rm -rf /kisskb/build/powerpc-next_powernv_defconfig_powerpc-gcc8 # Build took: 0:03:50.235901

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