# git rev-parse -q --verify 792993919349fefba20f58ae4843c80e8b01f518^{commit} 792993919349fefba20f58ae4843c80e8b01f518 already have revision, skipping fetch # git checkout -q -f -B kisskb 792993919349fefba20f58ae4843c80e8b01f518 # git clean -qxdf # < git log -1 # commit 792993919349fefba20f58ae4843c80e8b01f518 # Author: Christophe Leroy # Date: Fri Feb 11 15:16:51 2022 +0100 # # powerpc/64: Force inlining of prevent_user_access() and set_kuap() # # A ppc64_defconfig build exhibits about 10 copied of # prevent_user_access(). It also have one copy of set_kuap(). # # c000000000017340 <.prevent_user_access.constprop.0>: # c00000000001a038: 4b ff d3 09 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001aabc: 4b ff c8 85 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001ab38: 4b ff c8 09 bl c000000000017340 <.prevent_user_access.constprop.0> # c00000000001ade0: 4b ff c5 61 bl c000000000017340 <.prevent_user_access.constprop.0> # c000000000039b90 <.prevent_user_access.constprop.0>: # c00000000003ac08: 4b ff ef 89 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003b9d0: 4b ff e1 c1 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003ba54: 4b ff e1 3d bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000003bbfc: 4b ff df 95 bl c000000000039b90 <.prevent_user_access.constprop.0> # c00000000015dde0 <.prevent_user_access.constprop.0>: # c0000000001612c0: 4b ff cb 21 bl c00000000015dde0 <.prevent_user_access.constprop.0> # c000000000161b54: 4b ff c2 8d bl c00000000015dde0 <.prevent_user_access.constprop.0> # c000000000188cf0 <.prevent_user_access.constprop.0>: # c00000000018d658: 4b ff b6 99 bl c000000000188cf0 <.prevent_user_access.constprop.0> # c00000000030fe20 <.prevent_user_access.constprop.0>: # c0000000003123d4: 4b ff da 4d bl c00000000030fe20 <.prevent_user_access.constprop.0> # c000000000313970: 4b ff c4 b1 bl c00000000030fe20 <.prevent_user_access.constprop.0> # c0000000005e6bd0 <.prevent_user_access.constprop.0>: # c0000000005e7d8c: 4b ff ee 45 bl c0000000005e6bd0 <.prevent_user_access.constprop.0> # c0000000007bcae0 <.prevent_user_access.constprop.0>: # c0000000007bda10: 4b ff f0 d1 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007bda54: 4b ff f0 8d bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007bdd28: 4b ff ed b9 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c0000000007c0390: 4b ff c7 51 bl c0000000007bcae0 <.prevent_user_access.constprop.0> # c00000000094e4f0 <.prevent_user_access.constprop.0>: # c000000000950e40: 4b ff d6 b1 bl c00000000094e4f0 <.prevent_user_access.constprop.0> # c00000000097d2d0 <.prevent_user_access.constprop.0>: # c0000000009813fc: 4b ff be d5 bl c00000000097d2d0 <.prevent_user_access.constprop.0> # c000000000acd540 <.prevent_user_access.constprop.0>: # c000000000ad1d60: 4b ff b7 e1 bl c000000000acd540 <.prevent_user_access.constprop.0> # c000000000e5d680 <.prevent_user_access.constprop.0>: # c000000000e64b60: 4b ff 8b 21 bl c000000000e5d680 <.prevent_user_access.constprop.0> # c000000000e64b6c: 4b ff 8b 15 bl c000000000e5d680 <.prevent_user_access.constprop.0> # c000000000e64c38: 4b ff 8a 49 bl c000000000e5d680 <.prevent_user_access.constprop.0> # # When building signal_64.c with -Winline the following messages appear: # # ./arch/powerpc/include/asm/book3s/64/kup.h:331:20: error: inlining failed in call to 'set_kuap': call is unlikely and code size would grow [-Werror=inline] # ./arch/powerpc/include/asm/book3s/64/kup.h:401:20: error: inlining failed in call to 'prevent_user_access.constprop': call is unlikely and code size would grow [-Werror=inline] # # Those functions are used on hot pathes and have been # expected to be inlined at all time. # # Force them inline. # # This patch reduces the kernel text size by 700 bytes, confirming # that not inlining those functions is not worth it. # # Signed-off-by: Christophe Leroy # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/eff9b2b211957fa2e8707e46f31674097fd563a3.1644588972.git.christophe.leroy@csgroup.eu # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 792993919349fefba20f58ae4843c80e8b01f518 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_SAMPLES=n # Added to kconfig CONFIG_OPTIMIZE_INLINING=n # Added to kconfig CONFIG_BPF_PRELOAD=n # Added to kconfig # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:34.22-37.4: Warning (pci_bridge): /pci@fe0008000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:43.7-51.3 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:39.22-42.4: Warning (pci_bridge): /pci@fe0009000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:54.7-62.3 /kisskb/src/arch/powerpc/boot/dts/fsl/ppa8548.dts:44.23-47.4: Warning (pci_bridge): /pcie@fe000a000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:65.7-90.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8548si-post.dtsi:74.9-89.4: Warning (pci_bridge): /pcie@fe000a000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/ppa8548.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/ppa8548.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/ppa8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/kmcoge4.dts:196.23-198.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:87.7-113.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2041si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/kmcoge4.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/kmcoge4.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/kmcoge4.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:189.11-193.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@0: SPI bus unit address format error, expected "1" /kisskb/src/arch/powerpc/boot/dts/fsl/p1020rdb-pd.dts:195.11-199.6: Warning (spi_bus_reg): /soc@ffe00000/spi@7000/slic@1: SPI bus unit address format error, expected "2" /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0" /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:397.13-406.5: Warning (spi_bus_bridge): /soc@80000000/psc@11400: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:305.19-326.5 /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:409.13-418.5: Warning (spi_bus_bridge): /soc@80000000/psc@11500: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/ac14xx.dts:329.19-344.5 arch/powerpc/boot/dts/ac14xx.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@ffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/gef_sbc610.dts:209.22-211.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/gef_sbc610.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/gef_sbc610.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/gef_sbc610.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc5121.dtsi:457.13-466.5: Warning (spi_bus_bridge): /soc@80000000/psc@11900: node name for SPI buses should be 'spi' also defined at /kisskb/src/arch/powerpc/boot/dts/pdm360ng.dts:172.13-185.5 arch/powerpc/boot/dts/pdm360ng.dtb: Warning (spi_bus_reg): Failed prerequisite 'spi_bus_bridge' /kisskb/src/arch/powerpc/boot/dts/stxssa8555.dts:340.15-349.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0" /kisskb/src/arch/powerpc/boot/dts/stxssa8555.dts:329.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/gef_ppc9a.dts:211.22-213.4: Warning (pci_bridge): /pcie@fef09000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@fef09000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/gef_ppc9a.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/gef_ppc9a.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/gef_ppc9a.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:132.23-134.4: Warning (pci_bridge): /pcie@ffe200000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:58.7-84.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:68.9-83.4: Warning (pci_bridge): /pcie@ffe200000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:136.23-138.4: Warning (pci_bridge): /pcie@ffe201000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:87.7-113.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:97.9-112.4: Warning (pci_bridge): /pcie@ffe201000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/oca4080.dts:140.23-142.4: Warning (pci_bridge): /pcie@ffe202000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:116.7-142.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p4080si-post.dtsi:126.9-141.4: Warning (pci_bridge): /pcie@ffe202000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/oca4080.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/oca4080.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/oca4080.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@0:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/fsl/pq3-mpic.dtsi:38.2-25: Warning (interrupts_property): /soc@fffe00000/mdio@24000/ethernet-phy@1:#interrupt-cells: size is (8), expected multiple of 16 /kisskb/src/arch/powerpc/boot/dts/bluestone.dts:272.13-277.7: Warning (i2c_bus_reg): /plb/opb/i2c@ef600700/sttm@4C: I2C bus unit address format error, expected "4c" /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dts:59.23-62.4: Warning (pci_bridge): /pcie@fffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@fffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb-pc_36b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dts:59.22-62.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:100.7-126.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:109.9-125.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb-pc_32b.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/mpc8610_hpcd.dts:420.3-21: Warning (pci_device_bus_num): /pcie@e000a000/pcie@0:bus-range: PCI bus number 0 out of range, expected (1 - 3) /kisskb/src/arch/powerpc/boot/dts/mgcoge.dts:230.14-234.7: Warning (spi_bus_reg): /soc@f0000000/cpm@119c0/spi@11aa0/ds3106@1: SPI bus unit address format error, expected "0" /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:135.22-137.4: Warning (pci_bridge): /pcie@f1008000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:92.7-117.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:102.9-116.4: Warning (pci_bridge): /pcie@f1008000/pcie@0: missing ranges for PCI bridge (or not a bridge) /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:139.22-141.4: Warning (pci_bridge): /pcie@f1009000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:119.7-144.3 /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8641si-post.dtsi:129.9-143.4: Warning (pci_bridge): /pcie@f1009000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/mvme7100.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' /kisskb/src/arch/powerpc/boot/dts/fsl/mvme7100.dts:30.11-32.6: Warning (i2c_bus_reg): /soc@f1000000/i2c@3000/rtc@68: missing or empty reg property /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:341.15-350.5: Warning (pci_device_reg): /pci@e0008000/i8259@19000: PCI unit address format error, expected "12,0" /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/p2020rdb.dts:251.22-254.4: Warning (pci_bridge): /pcie@ffe08000: missing ranges for PCI bridge (or not a bridge) also defined at /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:43.7-68.3 /kisskb/src/arch/powerpc/boot/dts/fsl/p2020si-post.dtsi:52.9-67.4: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing ranges for PCI bridge (or not a bridge) arch/powerpc/boot/dts/fsl/p2020rdb.dtb: Warning (unit_address_format): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb.dtb: Warning (pci_device_reg): Failed prerequisite 'pci_bridge' arch/powerpc/boot/dts/fsl/p2020rdb.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' Completed OK # rm -rf /kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc9 # Build took: 0:08:35.592282