# git rev-parse -q --verify de5cb0dcb74c294ec527eddfe5094acfdb21ff21^{commit}
de5cb0dcb74c294ec527eddfe5094acfdb21ff21
already have revision, skipping fetch
# git checkout -q -f -B kisskb de5cb0dcb74c294ec527eddfe5094acfdb21ff21
# git clean -qxdf
# < git log -1
# commit de5cb0dcb74c294ec527eddfe5094acfdb21ff21
# Merge: af9c191ac2a0 533ab223aa1a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Sep 22 11:19:35 2024 -0700
# 
#     Merge branch 'address-masking'
#     
#     Merge user access fast validation using address masking.
#     
#     This allows architectures to optionally use a data dependent address
#     masking model instead of a conditional branch for validating user
#     accesses.  That avoids the Spectre-v1 speculation barriers.
#     
#     Right now only x86-64 takes advantage of this, and not all architectures
#     will be able to do it.  It requires a guard region between the user and
#     kernel address spaces (so that you can't overflow from one to the
#     other), and an easy way to generate a guaranteed-to-fault address for
#     invalid user pointers.
#     
#     Also note that this currently assumes that there is no difference
#     between user read and write accesses.  If extended to architectures like
#     powerpc, we'll also need to separate out the user read-vs-write cases.
#     
#     * address-masking:
#       x86: make the masked_user_access_begin() macro use its argument only once
#       x86: do the user address masking outside the user access area
#       x86: support user address masking instead of non-speculative conditional
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 de5cb0dcb74c294ec527eddfe5094acfdb21ff21
# make -s -j 160 ARCH=sh O=/kisskb/build/linus_defconfig_sh4-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-  defconfig
# < make -s -j 160 ARCH=sh O=/kisskb/build/linus_defconfig_sh4-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 160 ARCH=sh O=/kisskb/build/linus_defconfig_sh4-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 160 ARCH=sh O=/kisskb/build/linus_defconfig_sh4-gcc13 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-13.1.0-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/kernel/locking/spinlock.c:68:17: warning: no previous prototype for '__raw_spin_lock' [-Wmissing-prototypes]
   68 | void __lockfunc __raw_##op##_lock(locktype##_t *lock)                   \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:126:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  126 | BUILD_LOCK_OPS(spin, raw_spinlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:80:26: warning: no previous prototype for '__raw_spin_lock_irqsave' [-Wmissing-prototypes]
   80 | unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)  \
      |                          ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:126:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  126 | BUILD_LOCK_OPS(spin, raw_spinlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:98:17: warning: no previous prototype for '__raw_spin_lock_irq' [-Wmissing-prototypes]
   98 | void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock)               \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:126:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  126 | BUILD_LOCK_OPS(spin, raw_spinlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:103:17: warning: no previous prototype for '__raw_spin_lock_bh' [-Wmissing-prototypes]
  103 | void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock)                \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:126:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  126 | BUILD_LOCK_OPS(spin, raw_spinlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:68:17: warning: no previous prototype for '__raw_read_lock' [-Wmissing-prototypes]
   68 | void __lockfunc __raw_##op##_lock(locktype##_t *lock)                   \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:129:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  129 | BUILD_LOCK_OPS(read, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:80:26: warning: no previous prototype for '__raw_read_lock_irqsave' [-Wmissing-prototypes]
   80 | unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)  \
      |                          ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:129:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  129 | BUILD_LOCK_OPS(read, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:98:17: warning: no previous prototype for '__raw_read_lock_irq' [-Wmissing-prototypes]
   98 | void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock)               \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:129:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  129 | BUILD_LOCK_OPS(read, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:103:17: warning: no previous prototype for '__raw_read_lock_bh' [-Wmissing-prototypes]
  103 | void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock)                \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:129:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  129 | BUILD_LOCK_OPS(read, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:68:17: warning: no previous prototype for '__raw_write_lock' [-Wmissing-prototypes]
   68 | void __lockfunc __raw_##op##_lock(locktype##_t *lock)                   \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:130:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  130 | BUILD_LOCK_OPS(write, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:80:26: warning: no previous prototype for '__raw_write_lock_irqsave' [-Wmissing-prototypes]
   80 | unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)  \
      |                          ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:130:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  130 | BUILD_LOCK_OPS(write, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:98:17: warning: no previous prototype for '__raw_write_lock_irq' [-Wmissing-prototypes]
   98 | void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock)               \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:130:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  130 | BUILD_LOCK_OPS(write, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/locking/spinlock.c:103:17: warning: no previous prototype for '__raw_write_lock_bh' [-Wmissing-prototypes]
  103 | void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock)                \
      |                 ^~~~~~
/kisskb/src/kernel/locking/spinlock.c:130:1: note: in expansion of macro 'BUILD_LOCK_OPS'
  130 | BUILD_LOCK_OPS(write, rwlock);
      | ^~~~~~~~~~~~~~
/kisskb/src/kernel/fork.c: In function '__do_sys_clone3':
/kisskb/src/kernel/fork.c:3078:2: warning: #warning clone3() entry point is missing, please fix [-Wcpp]
 3078 | #warning clone3() entry point is missing, please fix
      |  ^~~~~~~
  Kernel: arch/sh/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_defconfig_sh4-gcc13
# Build took: 0:02:17.675230