# git rev-parse -q --verify e01a83e12604aa2f8d4ab359ec44e341a2248b4a^{commit}
e01a83e12604aa2f8d4ab359ec44e341a2248b4a
already have revision, skipping fetch
# git checkout -q -f -B kisskb e01a83e12604aa2f8d4ab359ec44e341a2248b4a
# git clean -qxdf
# < git log -1
# commit e01a83e12604aa2f8d4ab359ec44e341a2248b4a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jan 22 15:39:01 2024 -0800
# 
#     Revert "btrfs: zstd: fix and simplify the inline extent decompression"
#     
#     This reverts commit 1e7f6def8b2370ecefb54b3c8f390ff894b0c51b.
#     
#     It causes my machine to not even boot, and Klara Modin reports that the
#     cause is that small zstd-compressed files return garbage when read.
#     
#     Reported-by: Klara Modin <klarasmodin@gmail.com>
#     Link: https://lore.kernel.org/linux-btrfs/CABq1_vj4GpUeZpVG49OHCo-3sdbe2-2ROcu_xDvUG-6-5zPRXg@mail.gmail.com/
#     Reported-and-bisected-by: Linus Torvalds <torvalds@linux-foundation.org>
#     Acked-by: David Sterba <dsterba@suse.com>
#     Cc: Qu Wenruo <wqu@suse.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 e01a83e12604aa2f8d4ab359ec44e341a2248b4a
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allnoconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  allnoconfig
# < make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allnoconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  help
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allnoconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  olddefconfig
# make -s -j 40 ARCH=sparc64 O=/kisskb/build/linus_allnoconfig_sparc64-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/sparc64-linux/bin/sparc64-linux-  
<stdin>:1519:2: warning: #warning syscall clone3 not implemented [-Wcpp]
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/vdso/vma.c:246:12: warning: no previous prototype for 'init_vdso_image' [-Wmissing-prototypes]
 int __init init_vdso_image(const struct vdso_image *image,
            ^
/kisskb/src/arch/sparc/kernel/traps_64.c:253:6: warning: no previous prototype for 'is_no_fault_exception' [-Wmissing-prototypes]
 bool is_no_fault_exception(struct pt_regs *regs)
      ^
/kisskb/src/arch/sparc/kernel/traps_64.c:2035:6: warning: no previous prototype for 'do_mcd_err' [-Wmissing-prototypes]
 void do_mcd_err(struct pt_regs *regs, struct sun4v_error_entry ent)
      ^
/kisskb/src/arch/sparc/kernel/traps_64.c:2153:6: warning: no previous prototype for 'sun4v_nonresum_error_user_handled' [-Wmissing-prototypes]
 bool sun4v_nonresum_error_user_handled(struct pt_regs *regs,
      ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:254:1: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
 __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts)
 ^
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:282:1: warning: no previous prototype for '__vdso_clock_gettime_stick' [-Wmissing-prototypes]
 __vdso_clock_gettime_stick(clockid_t clock, struct __kernel_old_timespec *ts)
 ^
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:307:1: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
 __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
 ^
/kisskb/src/arch/sparc/vdso/vclock_gettime.c:343:1: warning: no previous prototype for '__vdso_gettimeofday_stick' [-Wmissing-prototypes]
 __vdso_gettimeofday_stick(struct __kernel_old_timeval *tv, struct timezone *tz)
 ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/prom/p1275.c:52:6: warning: no previous prototype for 'prom_cif_init' [-Wmissing-prototypes]
 void prom_cif_init(void *cif_handler, void *cif_stack)
      ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
In file included from /kisskb/src/arch/sparc/vdso/vdso32/vclock_gettime.c:22:0:
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:254:1: warning: no previous prototype for '__vdso_clock_gettime' [-Wmissing-prototypes]
 __vdso_clock_gettime(clockid_t clock, struct __kernel_old_timespec *ts)
 ^
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:282:1: warning: no previous prototype for '__vdso_clock_gettime_stick' [-Wmissing-prototypes]
 __vdso_clock_gettime_stick(clockid_t clock, struct __kernel_old_timespec *ts)
 ^
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:307:1: warning: no previous prototype for '__vdso_gettimeofday' [-Wmissing-prototypes]
 __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
 ^
/kisskb/src/arch/sparc/vdso/vdso32/../vclock_gettime.c:343:1: warning: no previous prototype for '__vdso_gettimeofday_stick' [-Wmissing-prototypes]
 __vdso_gettimeofday_stick(struct __kernel_old_timeval *tv, struct timezone *tz)
 ^
/kisskb/src/arch/sparc/prom/misc_64.c:165:5: warning: no previous prototype for 'prom_get_mmu_ihandle' [-Wmissing-prototypes]
 int prom_get_mmu_ihandle(void)
     ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/kernel/setup_64.c:602:13: warning: no previous prototype for 'alloc_irqstack_bootmem' [-Wmissing-prototypes]
 void __init alloc_irqstack_bootmem(void)
             ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/kernel/time_64.c:880:20: warning: no previous prototype for 'sched_clock' [-Wmissing-prototypes]
 unsigned long long sched_clock(void)
                    ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
/kisskb/src/arch/sparc/kernel/adi_64.c:124:21: warning: no previous prototype for 'find_tag_store' [-Wmissing-prototypes]
 tag_storage_desc_t *find_tag_store(struct mm_struct *mm,
                     ^
/kisskb/src/arch/sparc/kernel/adi_64.c:156:21: warning: no previous prototype for 'alloc_tag_store' [-Wmissing-prototypes]
 tag_storage_desc_t *alloc_tag_store(struct mm_struct *mm,
                     ^
/kisskb/src/arch/sparc/kernel/adi_64.c:299:6: warning: no previous prototype for 'del_tag_store' [-Wmissing-prototypes]
 void del_tag_store(tag_storage_desc_t *tag_desc, struct mm_struct *mm)
      ^
cc1: warning: unrecognized command line option '-Wno-shift-negative-value'
Completed OK
# rm -rf /kisskb/build/linus_allnoconfig_sparc64-gcc5
# Build took: 0:00:17.350421