# git rev-parse -q --verify 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71^{commit}
94f0b2d4a1d0c52035aef425da5e022bd2cb1c71
already have revision, skipping fetch
# git checkout -q -f -B kisskb 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71
# git clean -qxdf
# < git log -1
# commit 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Jun 15 09:26:19 2021 -0700
# 
#     proc: only require mm_struct for writing
#     
#     Commit 591a22c14d3f ("proc: Track /proc/$pid/attr/ opener mm_struct") we
#     started using __mem_open() to track the mm_struct at open-time, so that
#     we could then check it for writes.
#     
#     But that also ended up making the permission checks at open time much
#     stricter - and not just for writes, but for reads too.  And that in turn
#     caused a regression for at least Fedora 29, where NIC interfaces fail to
#     start when using NetworkManager.
#     
#     Since only the write side wanted the mm_struct test, ignore any failures
#     by __mem_open() at open time, leaving reads unaffected.  The write()
#     time verification of the mm_struct pointer will then catch the failure
#     case because a NULL pointer will not match a valid 'current->mm'.
#     
#     Link: https://lore.kernel.org/netdev/YMjTlp2FSJYvoyFa@unreal/
#     Fixes: 591a22c14d3f ("proc: Track /proc/$pid/attr/ opener mm_struct")
#     Reported-and-tested-by: Leon Romanovsky <leon@kernel.org>
#     Cc: Kees Cook <keescook@chromium.org>
#     Cc: Christian Brauner <christian.brauner@ubuntu.com>
#     Cc: Andrea Righi <andrea.righi@canonical.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71
# < make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  allmodconfig
# Added to kconfig CONFIG_64BIT=n
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_HAVE_FTRACE_MCOUNT_RECORD=n
# Added to kconfig CONFIG_SAMPLES=n
# Added to kconfig CONFIG_MODULE_SIG=n
# < make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/drivers/tty/serial/sunzilog.c:1128:13: warning: 'sunzilog_putchar' defined but not used [-Wunused-function]
 static void sunzilog_putchar(struct uart_port *port, int ch)
             ^
/kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
 #warning Precise timer not defined for this architecture.
  ^
WARNING: modpost: EXPORT symbol "bzero_1page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_exit" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_try" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ndelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ashrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "empty_zero_page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__udelay" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__lshrdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_write_enter" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__ashldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__copy_1page" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__muldi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "__divdi3" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: modpost: EXPORT symbol "___rw_read_enter" [vmlinux] version generation failed, symbol will not be versioned.
arch/sparc/kernel/head_32.o: In function `current_pc':
arch/sparc/kernel/head_32.o:(.head.text+0x5040): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `halt_notsup':
arch/sparc/kernel/head_32.o:(.head.text+0x5100): relocation truncated to fit: R_SPARC_WDISP22 against `.init.text'
arch/sparc/kernel/head_32.o: In function `leon_init':
arch/sparc/kernel/head_32.o:(.init.text+0xa4): relocation truncated to fit: R_SPARC_WDISP22 against symbol `leon_smp_cpu_startup' defined in .text section in arch/sparc/kernel/trampoline_32.o
arch/sparc/kernel/process_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/process_32.o:(.fixup+0xc): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x4): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x10): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x1c): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x28): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x34): relocation truncated to fit: R_SPARC_WDISP22 against `.text'
arch/sparc/kernel/signal_32.o:(.fixup+0x40): additional relocation overflows omitted from the output
make[1]: *** [/kisskb/src/Makefile:1196: vmlinux] Error 1
make: *** [Makefile:215: __sub-make] Error 2
Command 'make -s -j 120 ARCH=sparc O=/kisskb/build/linus_sparc-allmodconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sparc-allmodconfig_sparc64
# Build took: 0:06:58.910246