Changes in Makefile

c40845e3 - kbuild: make -Woverride-init warnings more consistent

Tue, 26 Mar 2024 14:47:16 +0000

kbuild: make -Woverride-init warnings more consistentThe -Woverride-init warn about code that may be intentional or not,but the inintentional ones tend to be real bugs, so there is a bit ofdisagreement on whether this warning option should be enabled by defaultand we have multiple settings in scripts/Makefile.extrawarn as well asindividual subsystems.Older versions of clang only supported -Wno-initializer-overrides withthe same meaning as gcc's -Woverride-init, though all supported versionsnow work with both. Because of this difference, an earlier cleanup ofmine accidentally turned the clang warning off for W=1 builds and onlyleft it on for W=2, while it's still enabled for gcc with W=1.There is also one driver that only turns the warning off for newerversions of gcc but not other compilers, and some but not all theMakefiles still use a cc-disable-warning conditional that is nolonger needed with supported compilers here.Address all of the above by removing the special cases for clangand always turning the warning off unconditionally where it gotin the way, using the syntax that is supported by both compilers.Fixes: 2cd3271b7a31 ("kbuild: avoid duplicate warning options")Signed-off-by: Arnd Bergmann Acked-by: Hamza Mahfooz Acked-by: Jani Nikula Acked-by: Andrew Jeffery Signed-off-by: Jani Nikula Reviewed-by: Linus Walleij Signed-off-by: Masahiro Yamada List of files: /linux-6.15/fs/proc/Makefile

c1a3c360 - proc: bootconfig: Add /proc/bootconfig to show boot config list

Fri, 10 Jan 2020 16:04:19 +0000

proc: bootconfig: Add /proc/bootconfig to show boot config listAdd /proc/bootconfig which shows the list of key-value pairsin boot config. Since after boot, all boot configs and treeare removed, this interface just keep a copy of key-valuepairs in text.Link: http://lkml.kernel.org/r/157867225967.17873.12155805787236073787.stgit@devnote2Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware) List of files: /linux-6.15/fs/proc/Makefile

3ee2a199 - proc: : uninline name_to_int()

Fri, 17 Nov 2017 23:26:49 +0000

proc: : uninline name_to_int()Save ~360 bytes. add/remove: 1/0 grow/shrink: 0/4 up/down: 104/-463 (-359) function old new delta name_to_int - 104 +104 proc_pid_lookup 217 126 -91 proc_lookupfd_common 212 121 -91 proc_task_lookup 289 194 -95 __proc_create 588 402 -186Link: http://lkml.kernel.org/r/20170912194850.GA17730@avx2Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'SPDX license identifier. The SPDX identifier is a legally bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines).All documentation files were explicitly excluded.The following heuristics were used to determine which SPDX licenseidentifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time.In total, over 70 hours of logged manual review was done on thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/fs/proc/Makefile

4b2e0162 - fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2

Wed, 03 Aug 2016 15:33:32 +0000

fs/proc: Add compiler check for -Wno-override-init to support gcc < 4.2With gcc < 4.2 (e.g. 4.1.2): CC fs/proc/task_mmu.o cc1: error: unrecognized command line option "-Wno-override-init"To fix this, only enable the compiler option when it is actuallysupported by the compiler.Fixes: ca52953f5f24 ("fs/proc/task_mmu.c: suppress compilation warnings with W=1")Signed-off-by: Geert Uytterhoeven Acked-by: Valdis Kletnieks Cc: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

ca52953f - fs/proc/task_mmu.c: suppress compilation warnings with W=1

Tue, 02 Aug 2016 21:03:25 +0000

fs/proc/task_mmu.c: suppress compilation warnings with W=1Suppress a bunch of warnings of the form: fs/proc/task_mmu.c: In function 'show_smap_vma_flags': fs/proc/task_mmu.c:635:22: warning: initialized field overwritten [-Wt override-init] [ilog2(VM_READ)] = "rd", ^~~~ fs/proc/task_mmu.c:635:22: note: (near initialization for 'mnemonics[0]')They happen because of the way we intentionally build the table, sosilence the warning when building with 'make W=1'.Link: http://lkml.kernel.org/r/8727.1470022083@turing-police.cc.vt.eduSigned-off-by: Valdis Kletnieks Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

0097875b - proc: Implement /proc/thread-self to point at the directory of the current thread

Thu, 31 Jul 2014 10:10:50 +0000

proc: Implement /proc/thread-self to point at the directory of the current thread/proc/thread-self is derived from /proc/self. /proc/thread-selfpoints to the directory in proc containing information about thecurrent thread.This funtionality has been missing for a long time, and is tricky toimplement in userspace as gettid() is not exported by glibc. Moreimportantly this allows fixing defects in /proc/mounts and /proc/netwhere in a threaded application today they wind up being empty fileswhen only the initial pthread has exited, causing problems for otherthreads.Signed-off-by: "Eric W. Biederman" List of files: /linux-6.15/fs/proc/Makefile

8357041a - of: remove /proc/device-tree

Tue, 06 Nov 2012 21:03:27 +0000

of: remove /proc/device-treeThe same data is now available in sysfs, so we can remove the codethat exports it in /proc and replace it with a symlink to the sysfsversion.Tested on versatile qemu model and mpc5200 eval board. More testingwould be appreciated.v5: Fixed up conflicts with mainline changesSigned-off-by: Grant Likely Cc: Rob Herring Cc: Benjamin Herrenschmidt Cc: David S. Miller Cc: Nathan Fontenot Cc: Pantelis Antoniou List of files: /linux-6.15/fs/proc/Makefile

db3808c1 - mm, vmalloc: move get_vmalloc_info() to vmalloc.c

Mon, 29 Apr 2013 22:07:28 +0000

mm, vmalloc: move get_vmalloc_info() to vmalloc.cNow get_vmalloc_info() is in fs/proc/mmu.c. There is no reason that thiscode must be here and it's implementation needs vmlist_lock and it iteratea vmlist which may be internal data structure for vmalloc.It is preferable that vmlist_lock and vmlist is only used in vmalloc.cfor maintainability. So move the code to vmalloc.cSigned-off-by: Joonsoo Kim Signed-off-by: Joonsoo Kim Cc: Thomas Gleixner Cc: "H. Peter Anvin" Cc: Atsushi Kumagai Cc: Chris Metcalf Cc: Dave Anderson Cc: Eric Biederman Cc: Guan Xuetao Cc: Ingo Molnar Cc: Vivek Goyal Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

4f73bc4d - tty: Added a CONFIG_TTY option to allow removal of TTY

Fri, 18 Jan 2013 06:44:22 +0000

tty: Added a CONFIG_TTY option to allow removal of TTYThe option allows you to remove TTY and compile without errors. Thissaves space on systems that won't support TTY interfaces anyway.bloat-o-meter output is below.The bulk of this patch consists of Kconfig changes adding "depends onTTY" to various serial devices and similar drivers that require the TTYlayer. Ideally, these dependencies would occur on a common intermediatesymbol such as SERIO, but most drivers "select SERIO" rather than"depends on SERIO", and "select" does not respect dependencies.bloat-o-meter output comparing our previous minimal to new minimal byremoving TTY. The list is filtered to not show removed entries with awk'$3 != "-"' as the list was very long.add/remove: 0/226 grow/shrink: 2/14 up/down: 6/-35356 (-35350)function old new deltachr_dev_init 166 170 +4allow_signal 80 82 +2static.__warned 143 142 -1disallow_signal 63 62 -1__set_special_pids 95 94 -1unregister_console 126 121 -5start_kernel 546 541 -5register_console 593 588 -5copy_from_user 45 40 -5sys_setsid 128 120 -8sys_vhangup 32 19 -13do_exit 1543 1526 -17bitmap_zero 60 40 -20arch_local_irq_save 137 117 -20release_task 674 652 -22static.spin_unlock_irqrestore 308 260 -48Signed-off-by: Joe Millenbach Reviewed-by: Jamey Sharp Reviewed-by: Josh Triplett Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/fs/proc/Makefile

e656d8a6 - procfs: Use the proc generic infrastructure for proc/self.

Sat, 10 Jul 2010 21:52:49 +0000

procfs: Use the proc generic infrastructure for proc/self.I had visions at one point of splitting proc into two filesystems. Ifthat had happened proc/self being the the part of proc that actually dealswith pids would have been a nice cleanup. As it is proc/self requiresa lot of unnecessary infrastructure for a single file.The only user visible change is that a mounted /proc for a pid namespacethat is dead now shows a broken proc symlink, instead of being completelyinvisible. I don't think anyone will notice or care.Signed-off-by: Eric W. Biederman List of files: /linux-6.15/fs/proc/Makefile

faf60af1 - procfs: Move /proc/pid/fd[info] handling code to fd.[ch]

Thu, 23 Aug 2012 10:43:24 +0000

procfs: Move /proc/pid/fd[info] handling code to fd.[ch]This patch prepares the ground for further extension of/proc/pid/fd[info] handling code by moving fdinfo handlingcode into fs/proc/fd.c.I think such move makes both fs/proc/base.c and fs/proc/fd.ceasier to read.Signed-off-by: Cyrill Gorcunov Acked-by: Pavel Emelyanov CC: Al Viro CC: Alexey Dobriyan CC: Andrew Morton CC: James Bottomley CC: "Aneesh Kumar K.V" CC: Alexey Dobriyan CC: Matthew Helsley CC: "J. Bruce Fields" CC: "Aneesh Kumar K.V" Signed-off-by: Al Viro List of files: /linux-6.15/fs/proc/Makefile

6b4e306a - ns: proc files for namespace naming policy.

Mon, 08 Mar 2010 00:41:34 +0000

ns: proc files for namespace naming policy.Create files under /proc//ns/ to allow controlling thenamespaces of a process.This addresses three specific problems that can make namespaces hard towork with.- Namespaces require a dedicated process to pin them in memory.- It is not possible to use a namespace unless you are the child of the original creator.- Namespaces don't have names that userspace can use to talk about them.The namespace files under /proc//ns/ can be opened and thefile descriptor can be used to talk about a specific namespace, andto keep the specified namespace alive.A namespace can be kept alive by either holding the file descriptoropen or bind mounting the file someplace else. aka:mount --bind /proc/self/ns/net /some/filesystem/pathmount --bind /proc/self/fd/ /some/filesystem/pathThis allows namespaces to be named with userspace policy.It requires additional support to make use of these filedescriptorsand that will be comming in the following patches.Acked-by: Daniel Lezcano Signed-off-by: Eric W. Biederman List of files: /linux-6.15/fs/proc/Makefile

bf33cbdf - proc: move proc_console.c to fs/proc/consoles.c

Thu, 13 Jan 2011 01:00:36 +0000

proc: move proc_console.c to fs/proc/consoles.cFilename is supposed to match procfile name for random junk.Add __init while I'm at it.Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

23308ba5 - console: add /proc/consoles

Thu, 04 Nov 2010 15:20:24 +0000

console: add /proc/consolesIt allows users to see what consoles are currently known to the systemand with what flags.It is based on Werner's patch, the part about traversing fds wasremoved, the code was moved to kernel/printk.c, where consoles arehandled and it makes more sense to me.Signed-off-by: Jiri Slaby [cleanups]Signed-off-by: "Dr. Werner Fink" Cc: Al Viro Cc: Greg Kroah-Hartman Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/fs/proc/Makefile

cfbef3cb - procfs: simplify conditional processing of fs/proc.o.

Wed, 11 Aug 2010 01:03:08 +0000

procfs: simplify conditional processing of fs/proc.o.Since the entire fs/proc directory is conditionally included based onCONFIG_PROC_FS, it's redundant to check that same variable within thatdirectory.Signed-off-by: Robert P. J. Day Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

d3d64df2 - proc: export statistics for softirq to /proc

Wed, 17 Jun 2009 23:25:55 +0000

proc: export statistics for softirq to /procExport statistics for softirq in /proc/softirqs and /proc/stat.1. /proc/softirqsImplement /proc/softirqs which shows the number of softirqfor each CPU like /proc/interrupts.2. /proc/statAdd the "softirq" line to /proc/stat.This line shows the number of softirq for all cpu.The first column is the total of all softirqs andeach subsequent column is the total for particular softirq.[kosaki.motohiro@jp.fujitsu.com: remove redundant for_each_possible_cpu() loop]Signed-off-by: Keika Kobayashi Reviewed-by: Hiroshi Shimamoto Cc: KOSAKI Motohiro Cc: Ingo Molnar Cc: Eric Dumazet Cc: Alexey Dobriyan Signed-off-by: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/fs/proc/Makefile

59c7572e - proc: remove fs/proc/proc_misc.c

Mon, 06 Oct 2008 10:49:39 +0000

proc: remove fs/proc/proc_misc.cNow that everything was moved to their more or less expected places,apply rm(1).Signed-off-by: Alexey Dobriyan List of files: /linux-6.15/fs/proc/Makefile

6d80e53f - proc: move pagecount stuff to fs/proc/page.c

Mon, 06 Oct 2008 10:26:12 +0000

proc: move pagecount stuff to fs/proc/page.cSigned-off-by: Alexey Dobriyan List of files: /linux-6.15/fs/proc/Makefile

d6917e19 - proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c

Sat, 04 Oct 2008 20:08:44 +0000

proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.cSigned-off-by: Alexey Dobriyan List of files: /linux-6.15/fs/proc/Makefile