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Joe Perches cd28b11904 checkpatch: reduce is_maintained_obsolete lookup runtime 
The is_maintained_obsolete function can be called twice using the same
filename.  This function spawns a process using get_maintainer.pl.
Store the status of each filename when spawned and use the stored result
to eliminate the spawning of unnecessary duplicate child processes.

Example:

old:

  $ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null

  real	0m1.767s
  user	0m1.634s
  sys	0m0.141s

new:

  $ time ./scripts/checkpatch.pl hp100-Move-to-staging.patch > /dev/null

  real	0m1.184s
  user	0m1.085s
  sys	0m0.103s

Link: http://lkml.kernel.org/r/b982566a2b9b4825badce36fdfc3032bd0005151.camel@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-04 19:44:13 -08:00
..
atomic
locking/atomics: Use sed(1) instead of non-standard head(1) option
2019-06-25 10:17:07 +02:00
basic
kbuild: remove unneeded comments and code from scripts/basic/Makefile
2019-08-29 23:54:29 +09:00
coccinelle
coccinelle: api/devm_platform_ioremap_resource: remove useless script
2019-10-17 09:05:56 -07:00
dtc
dtc: Use pkg-config to locate libyaml
2019-11-04 11:21:07 -06:00
gcc-plugins
randstruct: Check member structs in is_pure_ops_struct()
2019-07-31 13:13:22 -07:00
gdb
scripts/gdb: fix debugging modules compiled with hot/cold partitioning
2019-11-06 08:47:50 -08:00
genksyms
genksyms: convert to SPDX License Identifier for lex.l and parse.y
2019-09-14 11:40:13 +09:00
kconfig
kconfig: be more helpful if pkg-config is missing
2019-11-11 20:10:01 +09:00
ksymoops
…
mod
modpost: respect the previous export when 'exported twice' is warned
2019-11-23 15:46:42 +09:00
package
kbuild: Add make dir-pkg build option
2019-11-11 20:10:01 +09:00
selinux
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
tracing
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
.gitignore
video/logo: move pnmtologo tool to drivers/video/logo/ from scripts/
2019-11-11 20:07:03 +09:00
adjust_autoksyms.sh
kbuild: remove the first line of *.mod files
2019-07-18 02:19:31 +09:00
asn1_compiler.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36
2019-05-24 17:27:11 +02:00
bin2c.c
kbuild: move bin2c back to scripts/ from scripts/basic/
2018-07-18 01:18:05 +09:00
bloat-o-meter
bloat-o-meter: ignore __addressable_ symbols
2018-12-28 12:11:44 -08:00
bootgraph.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 391
2019-06-05 17:37:11 +02:00
bpf_helpers_doc.py
scripts/bpf: Print an error when known types list needs updating
2019-10-20 18:21:21 -07:00
cc-can-link.sh
bpfilter: check compiler capability in Kconfig
2018-06-28 13:36:39 +09:00
check_extable.sh
…
checkincludes.pl
…
checkkconfigsymbols.py
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
checkpatch.pl
checkpatch: reduce is_maintained_obsolete lookup runtime
2019-12-04 19:44:13 -08:00
checkstack.pl
scripts/checkstack.pl: Fix arm64 wrong or unknown architecture
2019-06-05 02:33:10 +09:00
checksyscalls.sh
checksyscalls: fix up mq_timedreceive and stat exceptions
2019-02-19 21:27:53 +01:00
checkversion.pl
…
clang-version.sh
kbuild: update comment block of scripts/clang-version.sh
2019-03-04 22:34:54 +09:00
cleanfile
…
cleanpatch
…
coccicheck
coccicheck: return proper error code on fail
2018-08-14 08:58:56 +09:00
config
…
conmakehash.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 54
2019-05-24 17:36:42 +02:00
const_structs.checkpatch
…
decode_stacktrace.sh
scripts/decode_stacktrace: Accept dash/underscore in modules
2019-07-12 11:05:41 -07:00
decodecode
scripts/decodecode: set ARCH when running natively on arm/arm64
2018-12-28 12:11:44 -08:00
depmod.sh
kbuild: modules_install: warn when missing System.map file
2018-09-09 09:14:07 +09:00
diffconfig
…
documentation-file-ref-check
scripts/documentation-file-ref-check: ignore output dir
2019-06-14 14:43:01 -06:00
export_report.pl
modpost: add support for symbol namespaces
2019-09-10 10:30:21 +02:00
extract_xc3028.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 339
2019-06-05 17:37:07 +02:00
extract-cert.c
…
extract-ikconfig
…
extract-module-sig.pl
…
extract-sys-certs.pl
…
extract-vmlinux
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378
2019-06-05 17:37:10 +02:00
faddr2line
scripts/faddr2line: fix location of start_kernel in comment
2018-11-18 10:15:09 -08:00
file-size.sh
kbuild: Use ls(1) instead of stat(1) to obtain file size
2018-03-26 02:01:24 +09:00
find-unused-docs.sh
…
gcc-goto.sh
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
gcc-ld
…
gcc-plugin.sh
…
gcc-version.sh
kbuild: clean up scripts/gcc-version.sh
2019-03-04 22:35:04 +09:00
gcc-x86_32-has-stack-protector.sh
stack-protector: test compiler capability in Kconfig and drop AUTO mode
2018-06-08 18:56:00 +09:00
gcc-x86_64-has-stack-protector.sh
stack-protector: Fix test with 32-bit userland and CONFIG_64BIT=y
2018-06-25 23:21:13 +09:00
gen_compile_commands.py
gen_compile_commands: lower the entry count threshold
2019-07-27 12:18:19 +09:00
gen_ksymdeps.sh
kbuild: simplify dependency generation for CONFIG_TRIM_UNUSED_KSYMS
2018-12-01 23:13:14 +09:00
get_abi.pl
doc: ABI scripts: add a SPDX header file
2019-06-21 16:58:37 +02:00
get_dvb_firmware
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
get_maintainer.pl
scripts/get_maintainer.pl: add signatures from Fixes: <badcommit> lines in commit message
2019-12-04 19:44:12 -08:00
gfp-translate
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
headerdep.pl
…
headers_check.pl
…
headers_install.sh
kbuild: re-implement detection of CONFIG options leaked to user-space
2019-08-21 21:05:21 +09:00
insert-sys-cert.c
…
jobserver-exec
docs, parallelism: Rearrange how jobserver reservations are made
2019-11-22 10:35:18 -07:00
kallsyms.c
scripts/kallsyms: remove redundant initializers
2019-11-25 21:07:05 +09:00
Kbuild.include
kbuild: rename any-prereq to newer-prereqs
2019-11-11 20:10:01 +09:00
Kconfig.include
kbuild: Fail if gold linker is detected
2019-08-14 01:10:42 +09:00
kernel-doc
scripts/kernel-doc: Add support for named variable macro arguments
2019-11-07 13:17:24 -07:00
ld-version.sh
…
leaking_addresses.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
Lindent
…
link-vmlinux.sh
Kbuild updates for v5.4
2019-09-20 08:36:47 -07:00
Makefile
video/logo: move pnmtologo tool to drivers/video/logo/ from scripts/
2019-11-11 20:07:03 +09:00
Makefile.asm-generic
kbuild: force all architectures except um to include mandatory-y
2019-03-17 12:56:32 +09:00
Makefile.build
kbuild: remove header compile test
2019-11-15 00:22:35 +09:00
Makefile.clean
kbuild: clean up subdir-ymn calculation in Makefile.clean
2019-08-29 23:54:29 +09:00
Makefile.dtbinst
…
Makefile.extrawarn
kbuild: allow Clang to find unused static inline functions for W=1 build
2019-09-09 23:55:43 +09:00
Makefile.gcc-plugins
gcc-plugins: structleak: Generalize to all variable types
2019-03-04 09:29:41 -08:00
Makefile.headersinst
kbuild: move headers_check rule to usr/include/Makefile
2019-11-15 00:23:10 +09:00
Makefile.host
kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)
2019-09-04 23:12:50 +09:00
Makefile.kasan
kasan/arm64: fix CONFIG_KASAN_SW_TAGS && KASAN_INLINE
2019-08-15 13:24:04 +01:00
Makefile.kcov
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
Makefile.lib
kbuild: remove header compile test
2019-11-15 00:22:35 +09:00
Makefile.modbuiltin
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
2019-07-17 22:39:27 +09:00
Makefile.modfinal
kbuild: move modkern_{c,a}flags to Makefile.lib from Makefile.build
2019-08-22 01:14:11 +09:00
Makefile.modinst
kbuild: modinst: read modules.order instead of $(MODVERDIR)/*.mod
2019-07-17 22:39:27 +09:00
Makefile.modpost
scripts/nsdeps: support nsdeps for external module builds
2019-11-11 20:10:01 +09:00
Makefile.modsign
kbuild: modsign: read modules.order instead of $(MODVERDIR)/*.mod
2019-07-17 22:39:27 +09:00
Makefile.package
kbuild: Add make dir-pkg build option
2019-11-11 20:10:01 +09:00
Makefile.ubsan
ubsan: Remove vla bound checks.
2019-05-06 11:12:09 -07:00
makelst
…
markup_oops.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 373
2019-06-05 17:37:10 +02:00
mkcompile_h
Kbuild: Handle PREEMPT_RT for version string and magic
2019-08-14 01:10:42 +09:00
mkmakefile
kbuild: get rid of $(realpath ...) from scripts/mkmakefile
2019-08-29 23:54:29 +09:00
mksysmap
…
mkuboot.sh
…
module-common.lds
…
modules-check.sh
kbuild: get rid of kernel/ prefix from in-tree modules.{order,builtin}
2019-07-17 22:39:27 +09:00
namespace.pl
namespace: fix namespace.pl script to support relative paths
2019-10-05 15:29:49 +09:00
nsdeps
scripts/nsdeps: support nsdeps for external module builds
2019-11-11 20:10:01 +09:00
objdiff
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 199
2019-05-30 11:29:23 -07:00
parse-maintainers.pl
…
patch-kernel
…
profile2linkerlist.pl
…
prune-kernel
…
recordmcount.c
recordmcount: Clarify what cleanup() does
2019-08-31 12:19:40 -04:00
recordmcount.h
recordmcount: Fix nop_mcount() function
2019-10-12 20:49:33 -04:00
recordmcount.pl
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166
2019-05-30 11:26:39 -07:00
setlocalversion
scripts: setlocalversion: replace backquote to dollar parenthesis
2019-11-11 20:10:01 +09:00
show_delta
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 438
2019-06-05 17:37:17 +02:00
sign-file.c
…
sortextable.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378
2019-06-05 17:37:10 +02:00
sortextable.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 378
2019-06-05 17:37:10 +02:00
spdxcheck-test.sh
scripts: add spdxcheck.py self test
2018-12-28 12:11:44 -08:00
spdxcheck.py
spdxcheck.py: fix directory structures
2019-06-01 15:51:31 -07:00
spelling.txt
scripts/spelling.txt: add more spellings to spelling.txt
2019-12-01 06:29:17 -08:00
sphinx-pre-install
scripts/sphinx-pre-install: fix Arch latexmk dependency
2019-11-07 13:17:24 -07:00
split-man.pl
MAINTAINERS & files: Canonize the e-mails I use at files
2018-05-04 06:21:06 -04:00
stackdelta
…
stackusage
…
subarch.include
selftests: add headers_install to lib.mk
2018-09-05 08:12:09 -06:00
tags.sh
kbuild: add a flag to force absolute path for srctree
2019-07-11 00:05:09 +09:00
tools-support-relr.sh
scripts/tools-support-relr.sh: un-quote variables
2019-11-13 10:52:05 +00:00
unifdef.c
unifdef: use memcpy instead of strncpy
2018-11-30 14:45:01 -08:00
ver_linux
scripts/ver_linux: add Bison and Flex to the checklist
2019-11-11 20:10:01 +09:00
xen-hypercalls.sh
…
xz_wrap.sh
…