# git rev-parse -q --verify 642e7fd23353e22290e3d51719fcb658dc252342^{commit}
642e7fd23353e22290e3d51719fcb658dc252342
already have revision, skipping fetch
# git checkout -q -f -B kisskb 642e7fd23353e22290e3d51719fcb658dc252342
# git clean -qxdf
# < git log -1
# commit 642e7fd23353e22290e3d51719fcb658dc252342
# Merge: 2103596 c9a2119
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Apr 2 21:22:12 2018 -0700
# 
#     Merge branch 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux
#     
#     Pull removal of in-kernel calls to syscalls from Dominik Brodowski:
#      "System calls are interaction points between userspace and the kernel.
#       Therefore, system call functions such as sys_xyzzy() or
#       compat_sys_xyzzy() should only be called from userspace via the
#       syscall table, but not from elsewhere in the kernel.
#     
#       At least on 64-bit x86, it will likely be a hard requirement from
#       v4.17 onwards to not call system call functions in the kernel: It is
#       better to use use a different calling convention for system calls
#       there, where struct pt_regs is decoded on-the-fly in a syscall wrapper
#       which then hands processing over to the actual syscall function. This
#       means that only those parameters which are actually needed for a
#       specific syscall are passed on during syscall entry, instead of
#       filling in six CPU registers with random user space content all the
#       time (which may cause serious trouble down the call chain). Those
#       x86-specific patches will be pushed through the x86 tree in the near
#       future.
#     
#       Moreover, rules on how data may be accessed may differ between kernel
#       data and user data. This is another reason why calling sys_xyzzy() is
#       generally a bad idea, and -- at most -- acceptable in arch-specific
#       code.
#     
#       This patchset removes all in-kernel calls to syscall functions in the
#       kernel with the exception of arch/. On top of this, it cleans up the
#       three places where many syscalls are referenced or prototyped, namely
#       kernel/sys_ni.c, include/linux/syscalls.h and include/linux/compat.h"
#     
#     * 'syscalls-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux: (109 commits)
#       bpf: whitelist all syscalls for error injection
#       kernel/sys_ni: remove {sys_,sys_compat} from cond_syscall definitions
#       kernel/sys_ni: sort cond_syscall() entries
#       syscalls/x86: auto-create compat_sys_*() prototypes
#       syscalls: sort syscall prototypes in include/linux/compat.h
#       net: remove compat_sys_*() prototypes from net/compat.h
#       syscalls: sort syscall prototypes in include/linux/syscalls.h
#       kexec: move sys_kexec_load() prototype to syscalls.h
#       x86/sigreturn: use SYSCALL_DEFINE0
#       x86: fix sys_sigreturn() return type to be long, not unsigned long
#       x86/ioport: add ksys_ioperm() helper; remove in-kernel calls to sys_ioperm()
#       mm: add ksys_readahead() helper; remove in-kernel calls to sys_readahead()
#       mm: add ksys_mmap_pgoff() helper; remove in-kernel calls to sys_mmap_pgoff()
#       mm: add ksys_fadvise64_64() helper; remove in-kernel call to sys_fadvise64_64()
#       fs: add ksys_fallocate() wrapper; remove in-kernel calls to sys_fallocate()
#       fs: add ksys_p{read,write}64() helpers; remove in-kernel calls to syscalls
#       fs: add ksys_truncate() wrapper; remove in-kernel calls to sys_truncate()
#       fs: add ksys_sync_file_range helper(); remove in-kernel calls to syscall
#       kernel: add ksys_setsid() helper; remove in-kernel call to sys_setsid()
#       kernel: add ksys_unshare() helper; remove in-kernel calls to sys_unshare()
#       ...
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < git log --format=%s --max-count=1 642e7fd23353e22290e3d51719fcb658dc252342
# < make -s -j 10 ARCH=sh O=/kisskb/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  randconfig
KCONFIG_SEED=0xFF98AB00
# Added to kconfig CONFIG_STANDALONE=y
# yes \n | make -s -j 10 ARCH=sh O=/kisskb/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 10 ARCH=sh O=/kisskb/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
In file included from /kisskb/src/arch/sh/math-emu/math.c:23:0:
/kisskb/src/include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
In file included from /kisskb/src/arch/sh/math-emu/math.c:24:0:
/kisskb/src/include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined [-Wundef]
/kisskb/src/arch/sh/math-emu/math.c:54:0: warning: "WRITE" redefined [enabled by default]
/kisskb/src/include/linux/kernel.h:65:0: note: this is the location of the previous definition
/kisskb/src/arch/sh/math-emu/math.c:55:0: warning: "READ" redefined [enabled by default]
/kisskb/src/include/linux/kernel.h:64:0: note: this is the location of the previous definition
/kisskb/src/arch/sh/math-emu/math.c: In function 'fcmp_gt':
/kisskb/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:81:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fcmp_eq':
/kisskb/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:92:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fadd':
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:108:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fsub':
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:115:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fmul':
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:122:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fdiv':
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:129:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fmac':
/kisskb/src/arch/sh/math-emu/math.c:145:2: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:145:2: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:147:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'ffloat':
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:294:3: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:294:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:296:3: warning: right shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:296:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'ftrc':
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:310:1: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fcnvsd':
/kisskb/src/arch/sh/math-emu/math.c:323:2: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:324:2: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:324:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: In function 'fcnvds':
/kisskb/src/arch/sh/math-emu/math.c:333:1: warning: left shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:334:2: warning: left shift count >= width of type [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:334:2: warning: right shift count is negative [enabled by default]
/kisskb/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c:335:1: warning: statement with no effect [-Wunused-value]
/kisskb/src/arch/sh/math-emu/math.c: At top level:
/kisskb/src/arch/sh/math-emu/math.c:505:12: warning: 'ieee_fpe_handler' defined but not used [-Wunused-function]
/kisskb/src/arch/sh/kernel/cpu/sh2/probe.c: In function 'scan_cache':
/kisskb/src/arch/sh/kernel/cpu/sh2/probe.c:27:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
/kisskb/src/arch/sh/kernel/cpu/sh2/probe.c: In function 'cpu_probe':
/kisskb/src/arch/sh/kernel/cpu/sh2/probe.c:46:2: error: implicit declaration of function 'hard_smp_processor_id' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:324: recipe for target 'arch/sh/kernel/cpu/sh2/probe.o' failed
make[4]: *** [arch/sh/kernel/cpu/sh2/probe.o] Error 1
/kisskb/src/scripts/Makefile.build:583: recipe for target 'arch/sh/kernel/cpu/sh2' failed
make[3]: *** [arch/sh/kernel/cpu/sh2] Error 2
/kisskb/src/scripts/Makefile.build:583: recipe for target 'arch/sh/kernel/cpu' failed
make[2]: *** [arch/sh/kernel/cpu] Error 2
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1053: recipe for target 'arch/sh/kernel' failed
make[1]: *** [arch/sh/kernel] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence':
/kisskb/src/drivers/dma-buf/reservation.c:225:6: warning: 'k' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:127:33: warning: 'levelspread[<U5780>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<U5780>]' was declared here
/kisskb/src/drivers/input/joystick/analog.c:176:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp]
/kisskb/src/drivers/mfd/arizona-core.c: In function 'arizona_dev_init':
/kisskb/src/drivers/mfd/arizona-core.c:1387:6: warning: 'n_subdevs' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/mfd/htc-pasic3.c: In function 'pasic3_remove':
/kisskb/src/drivers/mfd/htc-pasic3.c:189:22: warning: unused variable 'asic' [-Wunused-variable]
/kisskb/src/drivers/net/arcnet/arc-rimi.c: In function 'arc_rimi_exit':
/kisskb/src/drivers/net/arcnet/arc-rimi.c:346:23: warning: unused variable 'lp' [-Wunused-variable]
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r8':
/kisskb/src/drivers/sh/clk/cpg.c:41:2: warning: passing argument 1 of 'ioread8' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:29:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r16':
/kisskb/src/drivers/sh/clk/cpg.c:46:2: warning: passing argument 1 of 'ioread16' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:30:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r32':
/kisskb/src/drivers/sh/clk/cpg.c:51:2: warning: passing argument 1 of 'ioread32' discards 'const' qualifier from pointer target type [enabled by default]
/kisskb/src/include/asm-generic/iomap.h:32:21: note: expected 'void *' but argument is of type 'const void *'
/kisskb/src/drivers/thermal/broadcom/ns-thermal.c: In function 'ns_thermal_remove':
/kisskb/src/drivers/thermal/broadcom/ns-thermal.c:81:21: warning: unused variable 'ns_thermal' [-Wunused-variable]
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 10 ARCH=sh O=/kisskb/build/linus_sh-randconfig_sh4 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/sh4-linux/bin/sh4-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_sh-randconfig_sh4
# Build took: 0:01:05.863043