Yury Norov 29ddfd5460 lib/bitmap: drop optimization of bitmap_{from,to}_arr64 ... [ Upstream commit c1d2ba10f594046831d14b03f194e8d05e78abad ] bitmap_{from,to}_arr64() optimization is overly optimistic on 32-bit LE architectures when it's wired to bitmap_copy_clear_tail(). bitmap_copy_clear_tail() takes care of unused bits in the bitmap up to the next word boundary. But on 32-bit machines when copying bits from bitmap to array of 64-bit words, it's expected that the unused part of a recipient array must be cleared up to 64-bit boundary, so the last 4 bytes may stay untouched when nbits % 64 <= 32. While the copying part of the optimization works correct, that clear-tail trick makes corresponding tests reasonably fail: test_bitmap: bitmap_to_arr64(nbits == 1): tail is not safely cleared: 0xa5a5a5a500000001 (must be 0x0000000000000001) Fix it by removing bitmap_{from,to}_arr64() optimization for 32-bit LE arches. Reported-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/lkml/20230225184702.GA3587246@roeck-us.net/ Fixes: 0a97953fd2 ("lib: add bitmap_{from,to}_arr64") Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-07-19 16:21:58 +02:00
..
842
crypto
dim	linux/dim: Do nothing if no time delta between samples	2023-05-24 17:32:31 +01:00
fonts	lib/fonts: fix undefined behavior in bit shift for get_default_font	2022-12-31 13:31:56 +01:00
kunit	kunit: fix bug in the order of lines in debugfs logs	2023-05-11 23:03:05 +09:00
livepatch
lz4
lzo
math
mpi	lib/mpi: Fix buffer overrun when SG is too long	2023-03-10 09:32:52 +01:00
pldmfw
raid6
reed_solomon	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
test_fortify
vdso	lib/vdso: use "grep -E" instead of "egrep"	2022-11-23 19:50:15 +01:00
xz
zlib_deflate
zlib_dfltcc
zlib_inflate
zstd	zstd: Fix definition of assert()	2023-04-06 12:10:38 +02:00
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c
atomic64_test.c
atomic64.c
audit.c
base64.c
bcd.c
bch.c
bitfield_kunit.c
bitmap.c	lib/bitmap: drop optimization of bitmap_{from,to}_arr64	2023-07-19 16:21:58 +02:00
bitrev.c
bootconfig-data.S
bootconfig.c
bsearch.c
btree.c
bucket_locks.c
bug.c	cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG	2023-03-10 09:33:47 +01:00
build_OID_registry
buildid.c
bust_spinlocks.c
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline_kunit.c	treewide: use get_random_{u8,u16}() when possible, part 1	2022-10-11 17:42:58 -06:00
cmdline.c	lib/cmdline: avoid page fault in next_arg	2022-09-11 21:55:06 -07:00
cmpdi2.c
compat_audit.c
cpu_rmap.c	lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()	2023-06-14 11:15:22 +02:00
cpumask_kunit.c	lib/test_cpumask: Add for_each_cpu_and(not) tests	2022-10-06 05:57:36 -07:00
cpumask.c	lib/find_bit: add find_next{,_and}_bit_wrap	2022-10-01 10:22:57 -07:00
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
crc-ccitt.c
crc-itu-t.c
crc-t10dif.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c	debugobjects: Don't wake up kswapd from fill_pool()	2023-05-30 14:03:20 +01:00
dec_and_lock.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress_unzstd.c
decompress.c
devmem_is_allowed.c
devres.c
digsig.c
dump_stack.c
dynamic_debug.c	dyndbg: add drm.debug style (drm/parameters/debug) bitmap support	2022-09-07 17:04:49 +02:00
dynamic_queue_limits.c
earlycpio.c	lib: move from strlcpy with unused retval to strscpy	2022-09-11 21:55:10 -07:00
errname.c	printf: fix errname.c list	2023-03-10 09:33:27 +01:00
error-inject.c
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c	mm: fix unexpected changes to {failslab|fail_page_alloc}.attr	2022-11-22 18:50:44 -08:00
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
fdt.c
find_bit_benchmark.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
find_bit.c	lib/find_bit: Introduce find_next_andnot_bit()	2022-10-06 05:57:36 -07:00
flex_proportions.c	flex_proportions: Disable preemption entering the write section.	2022-09-19 14:35:08 +02:00
fortify_kunit.c	fortify: Adjust KUnit test for modular build	2022-09-14 07:04:15 -07:00
gen_crc32table.c
gen_crc64table.c
genalloc.c
generic-radix-tree.c
glob.c
globtest.c
hexdump.c
hweight.c
idr.c
inflate.c
interval_tree_test.c
interval_tree.c
iomap_copy.c
iomap.c	kmsan: add iomap support	2022-10-03 14:03:21 -07:00
iommu-helper.c
iov_iter.c	instrumented.h: allow instrumenting both sides of copy_from_user()	2022-10-03 14:03:18 -07:00
irq_poll.c
irq_regs.c
is_signed_type_kunit.c	lib: Improve the is_signed_type() kunit test	2022-09-07 16:37:27 -07:00
is_single_threaded.c
kasprintf.c
Kconfig	This update includes the following changes:	2022-10-10 13:04:25 -07:00
Kconfig.debug	test_kprobes: Fix implicit declaration error of test_kprobes	2023-01-07 11:11:55 +01:00
Kconfig.kasan	kasan: drop CONFIG_KASAN_TAGS_IDENTIFY	2022-10-03 14:02:57 -07:00
Kconfig.kcsan
Kconfig.kfence
Kconfig.kgdb	parisc: Convert PDC console to an early console	2022-10-11 12:01:24 +02:00
Kconfig.kmsan	kmsan: make sure PREEMPT_RT is off	2022-11-08 15:57:24 -08:00
Kconfig.ubsan
kfifo.c
klist.c
kobject_uevent.c
kobject.c	kobject: Fix slab-out-of-bounds in fill_kobj_path()	2023-03-10 09:33:30 +01:00
kstrtox.c
kstrtox.h
libcrc32c.c
linear_ranges.c
list_debug.c
list_sort.c
list-test.c
llist.c	llist: use try_cmpxchg in llist_add_batch and llist_del_first	2022-09-11 21:55:06 -07:00
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c	lockref: stop doing cpu_relax in the cmpxchg loop	2023-02-01 08:34:34 +01:00
logic_iomem.c
logic_pio.c
lru_cache.c
lshrdi3.c
Makefile	maple_tree: reorganize testing to restore module testing	2022-11-08 15:57:22 -08:00
maple_tree.c	maple_tree: fix potential out-of-bounds access in mas_wr_end_piv()	2023-07-01 13:16:23 +02:00
memcat_p.c
memcpy_kunit.c	kunit/memcpy: Avoid pathological compile-time string size	2022-09-07 16:37:48 -07:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c	netlink: prevent potential spectre v1 gadgets	2023-02-01 08:34:43 +01:00
nmi_backtrace.c
notifier-error-inject.c	lib/notifier-error-inject: fix error when writing -errno to debugfs file	2022-12-31 13:31:58 +01:00
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c	once: rename _SLOW to _SLEEPABLE	2022-10-03 17:34:32 -07:00
overflow_kunit.c	overflow: Refactor test skips for Clang-specific issues	2022-10-25 14:57:42 -07:00
packing.c
parman.c
parser.c
pci_iomap.c
percpu_counter.c
percpu_test.c
percpu-refcount.c
plist.c
pm-notifier-error-inject.c
polynomial.c
radix-tree.c
random32.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
ratelimit.c
rbtree_test.c
rbtree.c
ref_tracker.c
refcount.c
rhashtable.c
sbitmap.c	sbitmap: Try each queue to wake up at least one waiter	2023-03-10 09:34:34 +01:00
scatterlist.c
seq_buf.c
sg_pool.c	lib/sg_pool: change module_init(sg_pool_init) to subsys_initcall	2022-09-23 16:46:19 +02:00
sg_split.c
show_mem.c	mm: reduce noise in show_mem for lowmem allocations	2022-09-26 19:46:29 -07:00
siphash.c
slub_kunit.c
smp_processor_id.c
sort.c
stackdepot.c	stackdepot: reserve 5 extra bits in depot_stack_handle_t	2022-10-03 14:03:18 -07:00
stackinit_kunit.c	lib: stackinit: update reference to kunit-tool	2022-09-30 13:21:22 -06:00
stmp_device.c
string_helpers.c	lib/string_helpers: Introduce parse_int_array_user()	2022-09-05 14:51:46 +01:00
string.c	kmsan: disable strscpy() optimization under KMSAN	2022-10-03 14:03:22 -07:00
strncpy_from_user.c
strnlen_user.c
syscall.c
test_bitmap.c	lib/bitmap: add tests for for_each() loops	2022-10-01 10:22:58 -07:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c
test_debug_virtual.c
test_dynamic_debug.c	dyndbg: test DECLARE_DYNDBG_CLASSMAP, sysfs nodes	2022-09-07 17:04:49 +02:00
test_firmware.c	test_firmware: prevent race conditions by a correct implementation of locking	2023-06-21 16:00:51 +02:00
test_fprobe.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
test_fpu.c
test_free_pages.c
test_hash.c
test_hexdump.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
test_hmm_uapi.h	hmm-tests: add test for migrate_device_range()	2022-10-12 18:51:50 -07:00
test_hmm.c	hmm-tests: add test for migrate_device_range()	2022-10-12 18:51:50 -07:00
test_ida.c
test_kmod.c
test_kprobes.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
test_linear_ranges.c
test_list_sort.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
test_lockup.c
test_maple_tree.c	test_maple_tree: add more testing for mas_empty_area()	2023-03-30 12:49:26 +02:00
test_memcat_p.c
test_meminit.c	lib/test_meminit: add checks for the allocation functions	2022-10-12 18:51:49 -07:00
test_min_heap.c	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
test_module.c
test_objagg.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
test_parman.c
test_printf.c
test_ref_tracker.c
test_rhashtable.c	rhashtable: make test actually random	2022-10-26 13:39:09 +01:00
test_scanf.c
test_siphash.c
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_strscpy.c
test_sysctl.c
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c	treewide: use get_random_{u8,u16}() when possible, part 2	2022-10-11 17:42:58 -06:00
test_xarray.c
test-kstrtox.c
test-string_helpers.c	treewide: use prandom_u32_max() when possible, part 1	2022-10-11 17:42:55 -06:00
textsearch.c
timerqueue.c
trace_readwrite.c
ts_bm.c	lib/ts_bm: reset initial match offset for every block of text	2023-07-19 16:21:13 +02:00
ts_fsm.c
ts_kmp.c
ubsan.c	panic: Consolidate open-coded panic_on_warn checks	2023-01-24 07:24:41 +01:00
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c	uaccess: Add speculation barrier to copy_from_user()	2023-02-25 11:25:41 +01:00
uuid.c	treewide: use get_random_bytes() when possible	2022-10-11 17:42:58 -06:00
vsprintf.c	printk changes for 6.1	2022-10-10 11:24:19 -07:00
win_minmax.c
xarray.c
xxhash.c