Buildresult: powerpc-next/mpc85xx_smp_defconfig/powerpc-gcc5 built on Oct 22 2021, 03:24

kisskb

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Status:	OK
Date/Time:	Oct 22 2021, 03:24
Duration:	0:02:47.304999
Builder:	blade46
Revision:	powerpc/32: Don't use a struct based type for pte_t (`2974d421aac1374d3269fe4f1fba2068aa33134d)`
Target:	powerpc-next/mpc85xx_smp_defconfig/powerpc-gcc5
Branch:	powerpc-next
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	mpc85xx_smp_defconfig (download)
Log:	Download original Possible warnings (5) include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 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" 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) 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" 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) Full Log # git rev-parse -q --verify 2974d421aac1374d3269fe4f1fba2068aa33134d^{commit} 2974d421aac1374d3269fe4f1fba2068aa33134d already have revision, skipping fetch # git checkout -q -f -B kisskb 2974d421aac1374d3269fe4f1fba2068aa33134d # git clean -qxdf # < git log -1 # commit 2974d421aac1374d3269fe4f1fba2068aa33134d # Author: Christophe Leroy <christophe.leroy@csgroup.eu> # Date: Fri Sep 17 15:57:31 2021 +0200 # # powerpc/32: Don't use a struct based type for pte_t # # Long time ago we had a config item called STRICT_MM_TYPECHECKS # to build the kernel with pte_t defined as a structure in order # to perform additional build checks or build it with pte_t # defined as a simple type in order to get simpler generated code. # # Commit 670eea924198 ("powerpc/mm: Always use STRICT_MM_TYPECHECKS") # made the struct based definition the only one, considering that the # generated code was similar in both cases. # # That's right on ppc64 because the ABI is such that the content of a # struct having a single simple type element is passed as register, # but on ppc32 such a structure is passed via the stack like any # structure. # # Simple test function: # # pte_t test(pte_t pte) # { # return pte; # } # # Before this patch we get # # c00108ec <test>: # c00108ec: 81 24 00 00 lwz r9,0(r4) # c00108f0: 91 23 00 00 stw r9,0(r3) # c00108f4: 4e 80 00 20 blr # # So, for PPC32, restore the simple type behaviour we got before # commit 670eea924198, but instead of adding a config option to # activate type check, do it when __CHECKER__ is set so that type # checking is performed by 'sparse' and provides feedback like: # # arch/powerpc/mm/pgtable.c:466:16: warning: incorrect type in return expression (different base types) # arch/powerpc/mm/pgtable.c:466:16: expected unsigned long # arch/powerpc/mm/pgtable.c:466:16: got struct pte_t [usertype] x # # With this patch we now get # # c0010890 <test>: # c0010890: 4e 80 00 20 blr # # Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> # [mpe: Define STRICT_MM_TYPECHECKS rather than repeating the condition] # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/c904599f33aaf6bb7ee2836a9ff8368509e0d78d.1631887042.git.christophe.leroy@csgroup.eu # < /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 2974d421aac1374d3269fe4f1fba2068aa33134d # < make -s -j 32 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 # < make -s -j 32 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 32 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 32 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/kernel.h:11:0, from /kisskb/src/include/linux/list.h:9, 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:22:49: 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:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /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/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) Completed OK # rm -rf /kisskb/build/powerpc-next_mpc85xx_smp_defconfig_powerpc-gcc5 # Build took: 0:02:47.304999

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