# git rev-parse -q --verify f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36^{commit}
f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36
already have revision, skipping fetch
# git checkout -q -f -B kisskb f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36
# git clean -qxdf
# < git log -1
# commit f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Sep 23 08:58:31 2024 -0700
# 
#     mm: fix build on 32-bit targets without MAX_PHYSMEM_BITS
#     
#     The merge resolution to deal with the conflict between commits
#     ea72ce5da228 ("x86/kaslr: Expose and use the end of the physical memory
#     address space") and 99185c10d5d9 ("resource, kunit: add test case for
#     region_intersects()") ended up being broken in configurations didn't
#     define a MAX_PHYSMEM_BITS and that had a 32-bit 'phys_addr_t'.
#     
#     The fallback to using all bits set (ie "(-1ULL)") ended up causing a
#     build error:
#     
#         kernel/resource.c: In function ‘gfr_start’:
#         include/linux/minmax.h:93:30: error: conversion from ‘long long unsigned int’ to ‘resource_size_t’ {aka ‘unsigned int’} changes value from ‘18446744073709551615’ to ‘4294967295’ [-Werror=overflow]
#     
#     this was reported by Geert for m68k, but he points out that it happens
#     on other 32-bit architectures too, eg mips, xtensa, parisc, and powerpc.
#     
#     Limiting 'PHYSMEM_END' to a 'phys_addr_t' (which is the same as
#     'resource_size_t') fixes the build, but Geert points out that it will
#     then cause a silent overflow in mm/sparse.c:
#     
#             unsigned long max_sparsemem_pfn = (PHYSMEM_END + 1) >> PAGE_SHIFT;
#     
#     so we actually do want PHYSMEM_END to be defined a 64-bit type - just
#     not all ones, and not larger than 'phys_addr_t'.
#     
#     The proper fix is probably to not have some kind of default fallback at
#     all, but just make sure every architecture has a valid MAX_PHYSMEM_BITS.
#     But in the meantime, this just applies the rule that PHYSMEM_END is the
#     largest value that fits in a 'phys_addr_t', but does not have the high
#     bit set in 64 bits.
#     
#     Ugly, ugly.
#     
#     Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
#     Cc: Andrew Morton <akpm@linux-foundation.org>
#     Cc: Huang Ying <ying.huang@intel.com>
#     Cc: Thomas Gleixner <tglx@linutronix.de>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /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 f8eb5bd9a818cc5f2a1e50b22b0091830b28cc36
# 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: 0:00:40.995881