# git rev-parse -q --verify 20ce0c247b2500cb7060cb115274ba71abda2626^{commit} 20ce0c247b2500cb7060cb115274ba71abda2626 already have revision, skipping fetch # git checkout -q -f -B kisskb 20ce0c247b2500cb7060cb115274ba71abda2626 # git clean -qxdf # < git log -1 # commit 20ce0c247b2500cb7060cb115274ba71abda2626 # 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 # traverse_siblings_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 # [mpe: Move the code into pci-hotplug.c] # 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 20ce0c247b2500cb7060cb115274ba71abda2626 # make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_smp_defconfig Using /kisskb/src/arch/powerpc/configs/mpc85xx_base.config as base Merging /kisskb/src/arch/powerpc/configs/85xx-32bit.config Merging /kisskb/src/arch/powerpc/configs/85xx-smp.config Merging /kisskb/src/arch/powerpc/configs/85xx-hw.config Merging /kisskb/src/arch/powerpc/configs/fsl-emb-nonhw.config # # merged configuration written to .config (needs make) # # < make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/build_bug.h:5:0, from /kisskb/src/include/linux/container_of.h:5, from /kisskb/src/include/linux/list.h:5, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:28:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:77:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:138:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: At top level: cc1: warning: unrecognized command line option '-Wno-shift-negative-value' cc1: warning: unrecognized command line option '-Wno-stringop-overflow' Segmentation fault (core dumped) make[3]: *** [/kisskb/src/scripts/Makefile.vmlinux:34: vmlinux] Error 139 make[2]: *** [/kisskb/src/Makefile:1171: vmlinux] Error 2 make[1]: *** [/kisskb/src/Makefile:240: __sub-make] Error 2 make: *** [Makefile:240: __sub-make] Error 2 Command 'make -s -j 160 ARCH=powerpc O=/kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ' returned non-zero exit status 2. # rm -rf /kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 # Build took: 0:01:29.891982