# git rev-parse -q --verify b55129f97aeefd265314e12d98935330e011a14a^{commit} b55129f97aeefd265314e12d98935330e011a14a already have revision, skipping fetch # git checkout -q -f -B kisskb b55129f97aeefd265314e12d98935330e011a14a # git clean -qxdf # < git log -1 # commit b55129f97aeefd265314e12d98935330e011a14a # Author: Christophe Leroy # Date: Mon Jun 15 12:57:59 2020 +0000 # # powerpc/8xx: Provide ptep_get() with 16k pages # # READ_ONCE() now enforces atomic read, which leads to: # # CC mm/gup.o # In file included from ./include/linux/kernel.h:11:0, # from mm/gup.c:2: # In function 'gup_hugepte.constprop', # inlined from 'gup_huge_pd.isra.79' at mm/gup.c:2465:8: # ./include/linux/compiler.h:392:38: error: call to '__compiletime_assert_222' declared with attribute error: Unsupported access size for {READ,WRITE}_ONCE(). # _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) # ^ # ./include/linux/compiler.h:373:4: note: in definition of macro '__compiletime_assert' # prefix ## suffix(); \ # ^ # ./include/linux/compiler.h:392:2: note: in expansion of macro '_compiletime_assert' # _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) # ^ # ./include/linux/compiler.h:405:2: note: in expansion of macro 'compiletime_assert' # compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ # ^ # ./include/linux/compiler.h:291:2: note: in expansion of macro 'compiletime_assert_rwonce_type' # compiletime_assert_rwonce_type(x); \ # ^ # mm/gup.c:2428:8: note: in expansion of macro 'READ_ONCE' # pte = READ_ONCE(*ptep); # ^ # In function 'gup_get_pte', # inlined from 'gup_pte_range' at mm/gup.c:2228:9, # inlined from 'gup_pmd_range' at mm/gup.c:2613:15, # inlined from 'gup_pud_range' at mm/gup.c:2641:15, # inlined from 'gup_p4d_range' at mm/gup.c:2666:15, # inlined from 'gup_pgd_range' at mm/gup.c:2694:15, # inlined from 'internal_get_user_pages_fast' at mm/gup.c:2795:3: # ./include/linux/compiler.h:392:38: error: call to '__compiletime_assert_219' declared with attribute error: Unsupported access size for {READ,WRITE}_ONCE(). # _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) # ^ # ./include/linux/compiler.h:373:4: note: in definition of macro '__compiletime_assert' # prefix ## suffix(); \ # ^ # ./include/linux/compiler.h:392:2: note: in expansion of macro '_compiletime_assert' # _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) # ^ # ./include/linux/compiler.h:405:2: note: in expansion of macro 'compiletime_assert' # compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ # ^ # ./include/linux/compiler.h:291:2: note: in expansion of macro 'compiletime_assert_rwonce_type' # compiletime_assert_rwonce_type(x); \ # ^ # mm/gup.c:2199:9: note: in expansion of macro 'READ_ONCE' # return READ_ONCE(*ptep); # ^ # make[2]: *** [mm/gup.o] Error 1 # # Define ptep_get() on 8xx when using 16k pages. # # Fixes: 9e343b467c70 ("READ_ONCE: Enforce atomicity for {READ,WRITE}_ONCE() memory accesses") # Signed-off-by: Christophe Leroy # Acked-by: Will Deacon # Acked-by: Peter Zijlstra (Intel) # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/341688399c1b102756046d19ea6ce39db1ae4742.1592225558.git.christophe.leroy@csgroup.eu # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version # < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version # < git log --format=%s --max-count=1 b55129f97aeefd265314e12d98935330e011a14a # < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- defconfig # < make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- help # make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- olddefconfig # make -s -j 48 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux- FIT description: Linux 5.8.0-rc1-gb55129f97aee Created: Fri Jun 19 01:33:23 2020 Image 0 (kernel@0) Description: Linux 5.8.0-rc1-gb55129f97aee Created: Fri Jun 19 01:33:23 2020 Type: Kernel Image Compression: gzip compressed Data Size: 4992769 Bytes = 4875.75 KiB = 4.76 MiB Architecture: MIPS OS: Linux Load Address: 0x80100000 Entry Point: 0x80931640 Hash algo: sha1 Hash value: 060bee403e25fcb574bdd3b47ac371e2703a1baa Image 1 (fdt@boston) Description: img,boston Device Tree Created: Fri Jun 19 01:33:23 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 3793 Bytes = 3.70 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 4799f50d688573234da6e9d7701234d394759ef4 Image 2 (fdt@ni169445) Description: NI 169445 device tree Created: Fri Jun 19 01:33:23 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 1871 Bytes = 1.83 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 51b89b31605ee62038c8468c429af091dfc75ec7 Image 3 (fdt@ocelot_pcb123) Description: MSCC Ocelot PCB123 Device Tree Created: Fri Jun 19 01:33:23 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 4639 Bytes = 4.53 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: be2724f58b66c316a61da7c11ced633f4e7e86c7 Image 4 (fdt@ocelot_pcb120) Description: MSCC Ocelot PCB120 Device Tree Created: Fri Jun 19 01:33:23 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 5198 Bytes = 5.08 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 7556b1594bd7ab9e3b3fa939d8e3e03ae58fa180 Image 5 (fdt@xilfpga) Description: MIPSfpga (xilfpga) Device Tree Created: Fri Jun 19 01:33:23 2020 Type: Flat Device Tree Compression: uncompressed Data Size: 2708 Bytes = 2.64 KiB = 0.00 MiB Architecture: MIPS Hash algo: sha1 Hash value: 63d058b780f65e22da30f0a183433765f1807f1d Default Configuration: 'conf@default' Configuration 0 (conf@default) Description: Generic Linux kernel Kernel: kernel@0 Configuration 1 (conf@boston) Description: Boston Linux kernel Kernel: kernel@0 FDT: fdt@boston Configuration 2 (conf@ni169445) Description: NI 169445 Linux Kernel Kernel: kernel@0 FDT: fdt@ni169445 Configuration 3 (conf@ocelot_pcb123) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb123 Configuration 4 (conf@ocelot_pcb120) Description: Ocelot Linux kernel Kernel: kernel@0 FDT: fdt@ocelot_pcb120 Configuration 5 (conf@xilfpga) Description: MIPSfpga Linux kernel Kernel: kernel@0 FDT: fdt@xilfpga Completed OK # rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mipsel # Build took: 0:01:57.266167