alistair23-linux/lib
Linus Torvalds 96d4f267e4 Remove 'type' argument from access_ok() function
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument
of the user address range verification function since we got rid of the
old racy i386-only code to walk page tables by hand.

It existed because the original 80386 would not honor the write protect
bit when in kernel mode, so you had to do COW by hand before doing any
user access.  But we haven't supported that in a long time, and these
days the 'type' argument is a purely historical artifact.

A discussion about extending 'user_access_begin()' to do the range
checking resulted this patch, because there is no way we're going to
move the old VERIFY_xyz interface to that model.  And it's best done at
the end of the merge window when I've done most of my merges, so let's
just get this done once and for all.

This patch was mostly done with a sed-script, with manual fix-ups for
the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form.

There were a couple of notable cases:

 - csky still had the old "verify_area()" name as an alias.

 - the iter_iov code had magical hardcoded knowledge of the actual
   values of VERIFY_{READ,WRITE} (not that they mattered, since nothing
   really used it)

 - microblaze used the type argument for a debug printout

but other than those oddities this should be a total no-op patch.

I tried to fix up all architectures, did fairly extensive grepping for
access_ok() uses, and the changes are trivial, but I may have missed
something.  Any missed conversion should be trivially fixable, though.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-01-03 18:57:57 -08:00
..
842
fonts Fonts: New Terminus large console font 2018-12-19 10:42:08 +01:00
lz4 lib/lz4: update LZ4 decompressor module 2018-10-31 08:54:14 -07:00
lzo
mpi lib/mpi: remove redundant variable esign 2018-08-07 17:51:39 +08:00
raid6 raid6/ppc: Fix build for clang 2018-12-20 20:53:11 +11:00
reed_solomon reed_solomon: Fix kernel-doc 2018-07-10 15:00:52 -06:00
xz lib/xz: Put CRC32_POLY_LE in xz_private.h 2018-10-02 08:44:59 +10:00
zlib_deflate
zlib_inflate lib/zlib_inflate/inflate.c: remove fall through warnings 2018-10-31 08:54:13 -07:00
zstd lib: zstd: clean up Makefile for simpler composite object handling 2018-03-26 02:01:27 +09:00
.gitignore lib: add crc64 calculation routines 2018-08-22 10:52:48 -07:00
argv_split.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
ashldi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
ashrdi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
asn1_decoder.c ASN.1: check for error from ASN1_OP_END__ACT actions 2017-12-08 15:13:27 +00:00
assoc_array.c lib/assoc_array: Remove smp_read_barrier_depends() 2017-12-04 10:52:56 -08:00
atomic64.c atomics/generic: Define atomic64_fetch_add_unless() 2018-06-21 14:25:21 +02:00
atomic64_test.c
audit.c
bcd.c
bch.c lib/bch: fix possible stack overrun 2018-10-12 09:17:46 +02:00
bitmap.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
bitrev.c
bsearch.c
btree.c btree: avoid variable-length allocations 2018-03-14 16:55:29 -07:00
bucket_locks.c ila: make lockdep happy again 2018-08-16 12:14:42 -07:00
bug.c lib/bug.c: exclude non-BUG/WARN exceptions from report_bug() 2018-03-09 16:40:01 -08:00
build_OID_registry
bust_spinlocks.c s390: use common bust_spinlocks() 2018-11-30 07:22:05 +01:00
chacha.c crypto: chacha - add XChaCha12 support 2018-11-20 14:26:55 +08:00
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmpdi2.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
compat_audit.c
cordic.c lib: cordic: Move cordic macros and defines to header file 2018-11-29 17:30:48 +02:00
cpu_rmap.c
cpumask.c memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
crc-ccitt.c lib/crc-ccitt: Add CCITT-FALSE CRC16 variant 2018-01-08 10:08:33 +00:00
crc-itu-t.c
crc-t10dif.c crc-t10dif: crc_t10dif_mutex can be static 2018-09-14 14:08:52 +08:00
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c lib/crc32: make core crc32() routines weak so they can be overridden 2018-09-10 16:09:27 +01:00
crc32defs.h lib/crc: Move polynomial definition to separate header 2018-07-27 19:04:33 +08:00
crc32test.c
crc64.c lib: add crc64 calculation routines 2018-08-22 10:52:48 -07:00
ctype.c
debug_info.c
debug_locks.c locking/lockdep: Make global debug_locks* variables read-mostly 2018-10-19 07:53:18 +02:00
debugobjects.c debugobjects: call debug_objects_mem_init eariler 2018-12-28 12:11:45 -08:00
dec_and_lock.c atomic: Add irqsave variant of atomic_dec_and_lock() 2018-06-12 23:33:24 +02:00
decompress.c
decompress_bunzip2.c lib: Use existing define with polynomial 2018-07-27 19:16:38 +08:00
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
devres.c devres: Add devm_of_iomap() 2018-07-23 15:22:39 +10:00
digsig.c
div64.c
dump_stack.c printk: move dump stack related code to lib/dump_stack.c 2018-03-15 13:25:36 +01:00
dynamic_debug.c dynamic-debug-howto: fix optional/omitted ending line number to be LARGE instead of 0 2017-11-17 16:10:01 -08:00
dynamic_queue_limits.c
earlycpio.c
error-inject.c error-injection: Add injectable error types 2018-01-12 17:33:38 -08:00
errseq.c errseq: Always report a writeback error once 2018-04-27 08:51:26 -04:00
extable.c
fault-inject.c
fdt.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c lib: optimize cpumask_next_and() 2018-02-06 18:32:44 -08:00
find_bit_benchmark.c lib/find_bit_benchmark.c: avoid soft lockup in test_find_first_bit() 2018-05-11 17:28:45 -07:00
flex_array.c
flex_proportions.c
gcd.c lib/gcd: Remove use of CPU_NO_EFFICIENT_FFS macro 2018-11-12 14:26:21 -08:00
gen_crc32table.c lib/crc: Use consistent naming for CRC-32 polynomials 2018-07-27 19:04:33 +08:00
gen_crc64table.c lib: don't depend on linux headers being installed. 2018-12-29 11:36:44 -08:00
genalloc.c lib/genalloc.c: make the avail variable an atomic_long_t 2017-11-17 16:10:02 -08:00
glob.c
globtest.c
hexdump.c
hweight.c
idr.c radix tree: Remove radix_tree_update_node_t 2018-10-21 10:46:44 -04:00
inflate.c
int_sqrt.c lib: Add strongly typed 64bit int_sqrt 2018-02-04 10:17:21 +00:00
interval_tree.c
interval_tree_test.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
iomap.c
iomap_copy.c
iommu-helper.c iommu-helper: mark iommu_is_span_boundary as inline 2018-05-09 06:55:44 +02:00
ioremap.c lib/ioremap: ensure break-before-make is used for huge p4d mappings 2018-12-28 12:11:50 -08:00
iov_iter.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
irq_poll.c
irq_regs.c
is_single_threaded.c
jedec_ddr_data.c
kasprintf.c
Kconfig DMA mapping updates for Linux 4.21 2018-12-28 14:12:21 -08:00
Kconfig.debug Kconfig updates for v4.21 2018-12-29 13:03:29 -08:00
Kconfig.kasan kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS 2018-12-28 12:11:43 -08:00
Kconfig.kgdb
Kconfig.ubsan lib/ubsan: remove null-pointer checks 2018-08-10 20:19:58 -07:00
kfifo.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
klist.c scsi: klist: Make it safe to use klists in atomic context 2018-07-02 16:20:23 -04:00
kobject.c kref/kobject: Improve documentation 2018-12-06 13:57:03 +01:00
kobject_uevent.c kobject: Fix warnings in lib/kobject_uevent.c 2018-11-11 11:27:43 -08:00
kstrtox.c lib/kstrtox.c: delete unnecessary casts 2018-10-31 08:54:13 -07:00
kstrtox.h
lcm.c
libcrc32c.c libcrc32c: Add crc32c_impl function 2018-03-26 15:09:38 +02:00
list_debug.c lib/list_debug.c: print unmangled addresses 2018-04-11 10:28:35 -07:00
list_sort.c
llist.c
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 locking: Implement an algorithm choice for Wound-Wait mutexes 2018-07-03 09:44:36 +02:00
lockref.c lockref: Add lockref_put_not_zero 2018-04-12 09:41:19 -07:00
logic_pio.c lib: Add generic PIO mapping method 2018-03-21 17:18:34 -05:00
lru_cache.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
lshrdi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
Makefile Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2018-12-27 13:53:32 -08:00
memcat_p.c lib: Fix ia64 bootloader linkage 2018-10-16 13:45:44 +02:00
memory-notifier-error-inject.c
memweight.c
muldi3.c move libgcc.h to include/linux 2017-12-01 13:09:40 -08:00
net_utils.c
netdev-notifier-error-inject.c
nlattr.c netlink: Add strict version of nlmsg_parse and nla_parse 2018-10-08 10:39:04 -07:00
nmi_backtrace.c printk/nmi: Prevent deadlock when accessing the main log buffer in NMI 2018-07-09 14:10:40 +02:00
nodemask.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c lib: introduce initial implementation of object aggregation manager 2018-11-15 14:43:43 -08:00
of-reconfig-notifier-error-inject.c
oid_registry.c 509: fix printing uninitialized stack memory when OID is empty 2017-12-08 15:13:28 +00:00
once.c
parman.c
parser.c lib/parser.c: switch match_number() over to use match_strdup() 2018-10-31 08:54:12 -07:00
pci_iomap.c PCI: Add SPDX GPL-2.0 when no license was specified 2018-01-26 11:45:16 -06:00
percpu-refcount.c percpu-refcount: Replace call_rcu_sched() with call_rcu() 2018-11-27 09:21:45 -08:00
percpu_counter.c notifier: Remove notifier header file wherever not used 2018-08-30 12:56:40 +02:00
percpu_test.c
plist.c
pm-notifier-error-inject.c
prime_numbers.c
radix-tree.c radix tree: Don't return retry entries from lookup 2018-12-06 08:26:16 -05:00
random32.c treewide: Switch DEFINE_TIMER callbacks to struct timer_list * 2017-11-21 15:57:05 -08:00
ratelimit.c
rational.c
rbtree.c lib/rbtree,drm/mm: add rbtree_replace_node_cached() 2017-12-14 16:00:48 -08:00
rbtree_test.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
reciprocal_div.c lib: reciprocal_div: implement the improved algorithm on the paper mentioned 2018-07-07 01:45:31 +02:00
refcount.c Linux 4.18-rc5 2018-07-17 09:27:43 +02:00
rhashtable.c rhashtable: detect when object movement between tables might have invalidated a lookup 2018-12-03 15:31:55 -08:00
sbitmap.c sbitmap: add helpers for add/del wait queue handling 2018-12-20 12:17:05 -07:00
scatterlist.c arch: switch the default on ARCH_HAS_SG_CHAIN 2018-12-06 07:04:56 -08:00
seq_buf.c seq_buf: Use size_t for len in seq_buf_puts() 2018-12-22 08:21:03 -05:00
sg_pool.c lib/sg_pool.c: remove unnecessary null check when freeing object 2018-10-31 08:54:13 -07:00
sg_split.c
sha1.c
sha256.c kernel/kexec_file.c: move purgatories sha256 to common code 2018-04-13 17:10:28 -07:00
show_mem.c lib/show_mem.c: drop pgdat_resize_lock in show_mem() 2018-12-28 12:11:49 -08:00
siphash.c
smp_processor_id.c lib: do not use print_symbol() 2018-01-05 15:24:00 +01:00
sort.c
stackdepot.c lib/stackdepot.c: use a non-instrumented version of memcmp() 2018-02-06 18:32:44 -08:00
stmp_device.c
string.c lib: Fix ia64 bootloader linkage 2018-10-16 13:45:44 +02:00
string_helpers.c
strncpy_from_user.c
strnlen_user.c
syscall.c
test-kstrtox.c
test-string_helpers.c
test_bitfield.c bitfield: add tests 2018-06-27 18:58:49 +03:00
test_bitmap.c lib/test_bitmap.c: fix bitmap optimisation tests to report errors correctly 2018-05-18 17:17:12 -07:00
test_bpf.c net: remove VLAN_TAG_PRESENT 2018-11-16 19:25:29 -08:00
test_debug_virtual.c lib: fix build failure in CONFIG_DEBUG_VIRTUAL test 2018-12-17 22:12:30 +11:00
test_firmware.c test_firmware: fix error return getting clobbered 2018-11-11 09:18:04 -08:00
test_hash.c
test_hexdump.c test_hexdump: use memcpy instead of strncpy 2018-11-30 12:13:15 -08:00
test_ida.c test_ida: Fix lockdep warning 2018-10-15 16:31:29 -04:00
test_kasan.c lib/test_kasan.c: add tests for several string/memory API functions 2018-10-26 16:25:18 -07:00
test_kmod.c lib/test_kmod.c: fix rmmod double free 2018-11-30 14:56:14 -08:00
test_list_sort.c lib/test: delete five error messages for failed memory allocations 2017-11-17 16:10:01 -08:00
test_memcat_p.c lib: Fix ia64 bootloader linkage 2018-10-16 13:45:44 +02:00
test_module.c
test_objagg.c test_objagg: Fix warning. 2018-11-15 14:57:09 -08:00
test_overflow.c test_overflow: Add shift overflow tests 2018-08-08 09:47:26 -06:00
test_parman.c
test_printf.c lib/vsprintf: Print time and date in human readable format via %pt 2018-12-10 22:39:34 +01:00
test_rhashtable.c test_rhashtable: remove semaphore usage 2018-12-18 15:12:53 -08:00
test_siphash.c
test_sort.c lib/test_sort.c: add module unload support 2018-02-06 18:32:45 -08:00
test_static_key_base.c
test_static_keys.c
test_string.c lib: add module support to string tests 2017-11-17 16:10:01 -08:00
test_sysctl.c
test_ubsan.c lib/test_ubsan.c: make test_ubsan_misaligned_access() static 2018-04-11 10:28:35 -07:00
test_user_copy.c treewide: simplify Kconfig dependencies for removed archs 2018-03-26 15:55:57 +02:00
test_uuid.c
test_xarray.c XArray: Fix xa_alloc when id exceeds max 2018-12-13 14:07:33 -05:00
textsearch.c textsearch: fix kernel-doc warnings and add kernel-api section 2018-04-16 18:53:13 -04:00
timerqueue.c timerqueue: Document return values of timerqueue_add/del() 2017-12-29 23:13:10 +01:00
ts_bm.c
ts_fsm.c
ts_kmp.c
ubsan.c lib/ubsan.c: don't mark __ubsan_handle_builtin_unreachable as noreturn 2018-11-18 10:15:10 -08:00
ubsan.h lib/ubsan: remove returns-nonnull-attribute checks 2018-02-06 18:32:46 -08:00
ucmpdi2.c Add notrace to lib/ucmpdi2.c 2018-04-23 16:39:35 +01:00
ucs2_string.c lib/ucs2_string.c: add MODULE_LICENSE() 2018-06-07 17:34:39 -07:00
usercopy.c Remove 'type' argument from access_ok() function 2019-01-03 18:57:57 -08:00
uuid.c Documentation: add UUID/GUID to kernel-api 2017-12-11 15:03:08 -07:00
vsprintf.c lib/vsprintf: Print time and date in human readable format via %pt 2018-12-10 22:39:34 +01:00
win_minmax.c
xarray.c XArray: Fix xa_alloc when id exceeds max 2018-12-13 14:07:33 -05:00
xxhash.c