Changes in Kconfig

ae91f7e4 - net/pppoe: fix a typo for the PPPOE_HASH_BITS_1 definition

Mon, 05 Jun 2023 07:27:43 +0000

net/pppoe: fix a typo for the PPPOE_HASH_BITS_1 definitionInstead of its intention to define PPPOE_HASH_BITS_1, commit 96ba44c637b0("net/pppoe: make number of hash bits configurable") actually definedconfig PPPOE_HASH_BITS_2 twice in the ppp's Kconfig file due to a quicktypo with the numbers.Fix the typo and define PPPOE_HASH_BITS_1.Fixes: 96ba44c637b0 ("net/pppoe: make number of hash bits configurable")Signed-off-by: Lukas Bulwahn Reviewed-by: Simon Horman Reviewed-by: Jaco Kroon Link: https://lore.kernel.org/r/20230605072743.11247-1-lukas.bulwahn@gmail.comSigned-off-by: Paolo Abeni List of files: /linux-6.15/drivers/net/ppp/Kconfig

96ba44c6 - net/pppoe: make number of hash bits configurable

Wed, 17 May 2023 08:00:03 +0000

net/pppoe: make number of hash bits configurableWhen running large numbers of pppoe connections, a bucket size of 16 maybe too small and 256 may be more appropriate. This sacrifices some RAMbut should result in faster processing of incoming PPPoE frames.On our systems we run upwards of 150 PPPoE connections at any point intime, and we suspect we're starting to see the effects of this smallnumber of buckets.The legal values according to pppoe.c is anything that when 8 is dividedby that results in a modulo of 0, ie, 1, 2, 4 and 8.The size of the per-underlying-interface structure is:sizeof(rwlock_t) + sizeof(pppox_sock*) * PPPOE_HASH_SIZE.Assuming a 64-bit pointer this will result in just over a 2KiB structurefor PPPOE_HASH_BITS=8, which will likely result in a 4KiB allocation,which for us at least is acceptable.Not sure what the minimum allocation size is, and thus if values of 1and 2 truly make sense. Default results in historic sizing andbehaviour.Signed-off-by: Jaco Kroon Signed-off-by: David S. Miller List of files: /linux-6.15/drivers/net/ppp/Kconfig

a7f7f624 - treewide: replace '---help---' in Kconfig files with 'help'

Sat, 13 Jun 2020 16:50:22 +0000

treewide: replace '---help---' in Kconfig files with 'help'Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over'---help---'"), the number of '---help---' has been graduallydecreasing, but there are still more than 2400 instances.This commit finishes the conversion. While I touched the lines,I also fixed the indentation.There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---'In order to convert all of them to 1 tab + 'help', I ran thefollowing commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'Signed-off-by: Masahiro Yamada List of files: /linux-6.15/drivers/net/ppp/Kconfig

0e5a610b - ppp: mppe: switch to RC4 library interface

Wed, 12 Jun 2019 16:19:58 +0000

ppp: mppe: switch to RC4 library interfaceThe MPPE code uses the sync skcipher to invoke the ecb(arc4) skcipher,of which only a single generic C code implementation exists. This meansthat going through all the trouble of using scatterlists etc buys usvery little, and we're better off just invoking the arc4 library directly.Note that the SHA1 shash used by this driver has several acceleratedimplementations for various architectures, so retaining that part doesmake sense.Cc: linux-ppp@vger.kernel.orgCc: Paul Mackerras Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu List of files: /linux-6.15/drivers/net/ppp/Kconfig

ec8f24b7 - treewide: Add SPDX license identifier - Makefile/Kconfig

Sun, 19 May 2019 12:07:45 +0000

treewide: Add SPDX license identifier - Makefile/KconfigAdd SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any formThese files fall under the project license, GPL v2 only. The resulting SPDXlicense identifier is: GPL-2.0-onlySigned-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/net/ppp/Kconfig

8aa53cb3 - drivers/net/ppp: remove depends on CONFIG_EXPERIMENTAL

Tue, 22 Jan 2013 18:30:34 +0000

drivers/net/ppp: remove depends on CONFIG_EXPERIMENTALThe CONFIG_EXPERIMENTAL config item has not carried much meaning for awhile now and is almost always enabled by default. As agreed during theLinux kernel summit, remove it from any "depends on" lines in Kconfigs.Acked-by: David S. Miller Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/net/ppp/Kconfig

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/drivers/net/ppp/Kconfig

224cf5ad - ppp: Move the PPP drivers

Sun, 31 Jul 2011 09:38:19 +0000

ppp: Move the PPP driversMove the PPP drivers into drivers/net/ppp/ and make thenecessary Kconfig and Makefile changes.CC: Paul Mackerras CC: Frank Cusack CC: Michal Ostrowski CC: Michal Ostrowski CC: Dmitry Kozlov Signed-off-by: Jeff Kirsher List of files: /linux-6.15/drivers/net/ppp/Kconfig