# git rev-parse -q --verify c63d2ccaef11f31bdf7cac3b5c4a20b13dcec06d^{commit} c63d2ccaef11f31bdf7cac3b5c4a20b13dcec06d already have revision, skipping fetch # git checkout -q -f -B kisskb c63d2ccaef11f31bdf7cac3b5c4a20b13dcec06d # git clean -qxdf # < git log -1 # commit c63d2ccaef11f31bdf7cac3b5c4a20b13dcec06d # Author: Krishna Kumar # Date: Mon Jul 1 13:15:07 2024 +0530 # # powerpc/pci: Hotplug driver bridge support # # There is an issue with the hotplug operation when it's done on the # bridge/switch slot. The bridge-port and devices behind the bridge, which # become offline by hot-unplug operation, don't get hot-plugged/enabled # by doing hot-plug operation on that slot. Only the first port of the # bridge gets enabled and the remaining port/devices remain unplugged. The # hot plug/unplug operation is done by the hotplug driver (drivers/pci/ # hotplug/pnv_php.c). # # This behavior is due to missing code for the switch/bridge. The existing # driver depends on pci_hp_add_devices() function for device enablement. # This function calls pci_scan_slot() on only one device-node/port of the # bridge, not on all the siblings' device-node/port. # # The missing code needs to be added which will find all the sibling # device-nodes/bridge-ports and will run explicit pci_scan_slot() # on those. A new function has been added for this purpose # which is invoked from pci_hp_add_devices(). This new function # pci_traverse_sibling_nodes_and_scan_slot() gets all the sibling # bridge-ports by traversal and explicitly invokes pci_scan_slot() on # them. # # Tested-by: Shawn Anastasio # Signed-off-by: Krishna Kumar # Signed-off-by: Michael Ellerman # Link: https://msgid.link/20240701074513.94873-3-krishnak@linux.ibm.com # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 c63d2ccaef11f31bdf7cac3b5c4a20b13dcec06d # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ep8248e_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ep8248e_defconfig # < make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ep8248e_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ep8248e_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 40 ARCH=powerpc O=/kisskb/build/powerpc-next_ep8248e_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/ep8248e.dts:101.13-190.5: Warning (interrupt_provider): /soc@f0000000/cpm@119c0: '#interrupt-cells' found, but node is not an interrupt provider arch/powerpc/boot/dts/ep8248e.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/powerpc-next_ep8248e_defconfig_powerpc-gcc5 # Build took: 0:00:40.559271