# git rev-parse -q --verify f8ad8187c3b536ee2b10502a8340c014204a1af0^{commit}
f8ad8187c3b536ee2b10502a8340c014204a1af0
already have revision, skipping fetch
# git checkout -q -f -B kisskb f8ad8187c3b536ee2b10502a8340c014204a1af0
# git clean -qxdf
# < git log -1
# commit f8ad8187c3b536ee2b10502a8340c014204a1af0
# Author: Johannes Berg <johannes@sipsolutions.net>
# Date:   Mon Jan 25 10:16:15 2021 +0100
# 
#     fs/pipe: allow sendfile() to pipe again
#     
#     After commit 36e2c7421f02 ("fs: don't allow splice read/write
#     without explicit ops") sendfile() could no longer send data
#     from a real file to a pipe, breaking for example certain cgit
#     setups (e.g. when running behind fcgiwrap), because in this
#     case cgit will try to do exactly this: sendfile() to a pipe.
#     
#     Fix this by using iter_file_splice_write for the splice_write
#     method of pipes, as suggested by Christoph.
#     
#     Cc: stable@vger.kernel.org
#     Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")
#     Suggested-by: Christoph Hellwig <hch@lst.de>
#     Reviewed-by: Christoph Hellwig <hch@lst.de>
#     Tested-by: Johannes Berg <johannes@sipsolutions.net>
#     Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
#     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 f8ad8187c3b536ee2b10502a8340c014204a1af0
# < make -s -j 48 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 48 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 48 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 48 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]
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/linux/page_counter.h:5,
                 from /kisskb/src/mm/memcontrol.c:28:
/kisskb/src/mm/memcontrol.c: In function 'memcg_reparent_objcgs':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/mm/memcontrol.c:331:2: note: in expansion of macro 'xchg'
  xchg(&objcg->memcg, parent);
  ^
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/mm/memcontrol.c:338:3: note: in expansion of macro 'xchg'
   xchg(&iter->memcg, parent);
   ^
/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)
             ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:32,
                 from /kisskb/src/include/linux/kernel.h:11,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/wait.h:7,
                 from /kisskb/src/include/linux/wait_bit.h:8,
                 from /kisskb/src/include/linux/fs.h:6,
                 from /kisskb/src/fs/ocfs2/file.c:13:
/kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/fs/ocfs2/file.c:2419:3: note: in expansion of macro 'xchg'
   xchg(&iocb->ki_complete, saved_ki_complete);
   ^
/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.
  ^
In file included from /kisskb/src/arch/sparc/include/asm/cmpxchg.h:7:0,
                 from /kisskb/src/arch/sparc/include/asm/atomic_32.h:17,
                 from /kisskb/src/arch/sparc/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/asm-generic/bitops/lock.h:5,
                 from /kisskb/src/arch/sparc/include/asm/bitops_32.h:102,
                 from /kisskb/src/arch/sparc/include/asm/bitops.h:7,
                 from /kisskb/src/include/linux/bitops.h:32,
                 from /kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:11:
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c: In function 'ixgbevf_xdp_setup':
/kisskb/src/arch/sparc/include/asm/cmpxchg_32.h:28:22: warning: value computed is not used [-Wunused-value]
 #define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
                      ^
/kisskb/src/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c:4463:4: note: in expansion of macro 'xchg'
    xchg(&adapter->rx_ring[i]->xdp_prog, adapter->xdp_prog);
    ^
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:1170: vmlinux] Error 1
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 48 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: 0:11:47.396721