wireguard-linux/drivers/net/ppp/Kconfig, branch stable

Merge tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2026-06-22T18:51:49Z

Pull tty / serial driver updates from Greg KH: "Here is the big set of TTY and Serial driver updates for 7.2-rc1. Overall we end up removing more code than added, due to an obsolete synclink_gt driver being removed from the tree, always a nice thing to see happen. Other than that driver removal, major things included in here are: - max310x serial driver updates and fixes - 8250 driver updates and rework in places to make it more "modern" - dts file updates - serial driver core tweaks and updates - vt code cleanups - vc_screen crash fixes - other minor driver updates and cleanups All of these have been in linux-next for well over a week with no reported issues" * tag 'tty-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (49 commits) serial: 8250_pci: Don't specify conflicting values to pci_device_id members vc_screen: fix null-ptr-deref in vcs_notifier() during concurrent vcs_write serial: qcom_geni: Fix RX DMA stall when SE_DMA_RX_LEN_IN is zero vt: merge ucs_is_zero_width()/ucs_is_double_width() into ucs_get_width() serial: 8250: fix possible ISR soft lockup dt-bindings: serial: rs485: remove deprecated .txt binding stub serial: qcom-geni: trace: Add tracepoint support for Qualcomm GENI serial tty: serial: Use named initializers for arrays of i2c_device_data serial: 8250_dw: remove clock-notifier infrastructure serial: 8250_dw: unregister 8250 port if clk_notifier_register() fails amba/serial: amba-pl011: Bring back zx29 UART support serial: 8250: Add support for console flow control serial: 8250: Check LSR timeout on console flow control serial: 8250: Set cons_flow on port registration tty: serial: 8250: protect against NULL uart->port.dev in register arm64: dts: add support for A9 based Amlogic BY401 dt-bindings: arm: amlogic: add A311Y3 support serial: max310x: fix compile errors if CONFIG_SPI_MASTER is disabled serial: qcom-geni: Avoid probing debug console UART without console support serial: max310x: add comments for PLL limits ...

tty: synclink_gt: remove broken driver

2026-05-11T14:55:56Z

The synclink_gt driver was marked as broken in commit 426263d5fb40 ("tty: synclink_gt: mark as BROKEN") in July 2023 because it had severe structural problems and there had been no evidence of users since 2016. Since then, no meaningful improvements have been made to the driver, and it is unlikely that will ever happen due to the lack of interest. Drop the driver and references to it in comments and documentation. include/uapi/linux/synclink.h is also removed. The only use of this header I have found is the linux-raw-sys Rust crate. It generates bindings for all UAPI headers, but has a hardcoded list of headers and ioctls, including this one, so that does not indicate that anyone is using it. I have sent a pull request to remove the include and ioctl definitions for this header (see the link below). Link: https://github.com/sunfishcode/linux-raw-sys/pull/185 Signed-off-by: Ethan Nelson-Moore Acked-by: Jakub Kicinski Link: https://patch.msgid.link/20260504031519.18877-1-enelsonmoore@gmail.com Signed-off-by: Greg Kroah-Hartman

ppp: add PPPOX symbol

2026-04-29T01:31:10Z

Add a dedicated CONFIG_PPPOX symbol to handle the PPPoX generic module, avoiding redundant pppox.o definitions in the Makefile. Signed-off-by: Qingfang Deng Link: https://patch.msgid.link/20260428012830.3069-1-qingfang.deng@linux.dev Signed-off-by: Jakub Kicinski

ppp: update Kconfig help message

2026-04-03T22:35:13Z

Both links of the PPPoE section are no longer valid, and the CVS version is no longer relevant. - Replace the TLDP URL with the pppd project homepage. - Update pppd version requirement for PPPoE. - Update RP-PPPoE project homepage, and clarify that it's only needed for server mode. Signed-off-by: Qingfang Deng Reviewed-by: Julian Braha Link: https://patch.msgid.link/20260402050053.144250-1-qingfang.deng@linux.dev Signed-off-by: Jakub Kicinski

ppp: dead code cleanup in Kconfig

2026-04-02T01:51:59Z

There is already an 'if PPP' condition wrapping several config options e.g. PPP_MPPE and PPPOE, making the 'depends on PPP' statement for each of these a duplicate dependency (dead code). I propose leaving the outer 'if PPP...endif' and removing the individual 'depends on PPP' statement from each option. This dead code was found by kconfirm, a static analysis tool for Kconfig. Signed-off-by: Julian Braha Reviewed-by: Qingfang Deng Link: https://patch.msgid.link/20260330213258.13982-1-julianbraha@gmail.com Signed-off-by: Jakub Kicinski

ppp: mppe: Use SHA-1 library instead of crypto_shash

2025-08-19T00:30:40Z

Now that a SHA-1 library API is available, use it instead of crypto_shash. This is simpler and faster. Signed-off-by: Eric Biggers Link: https://patch.msgid.link/20250815020705.23055-1-ebiggers@kernel.org Signed-off-by: Jakub Kicinski

net/pppoe: fix a typo for the PPPOE_HASH_BITS_1 definition

2023-06-06T11:28:30Z

Instead of its intention to define PPPOE_HASH_BITS_1, commit 96ba44c637b0 ("net/pppoe: make number of hash bits configurable") actually defined config PPPOE_HASH_BITS_2 twice in the ppp's Kconfig file due to a quick typo 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.com Signed-off-by: Paolo Abeni

net/pppoe: make number of hash bits configurable

2023-05-17T12:03:45Z

When running large numbers of pppoe connections, a bucket size of 16 may be too small and 256 may be more appropriate. This sacrifices some RAM but should result in faster processing of incoming PPPoE frames. On our systems we run upwards of 150 PPPoE connections at any point in time, and we suspect we're starting to see the effects of this small number of buckets. The legal values according to pppoe.c is anything that when 8 is divided by 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 structure for 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 1 and 2 truly make sense. Default results in historic sizing and behaviour. Signed-off-by: Jaco Kroon Signed-off-by: David S. Miller

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

2020-06-13T16:57:21Z

Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, 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 the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada

Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2019-07-09T03:57:08Z

Pull crypto updates from Herbert Xu: "Here is the crypto update for 5.3: API: - Test shash interface directly in testmgr - cra_driver_name is now mandatory Algorithms: - Replace arc4 crypto_cipher with library helper - Implement 5 way interleave for ECB, CBC and CTR on arm64 - Add xxhash - Add continuous self-test on noise source to drbg - Update jitter RNG Drivers: - Add support for SHA204A random number generator - Add support for 7211 in iproc-rng200 - Fix fuzz test failures in inside-secure - Fix fuzz test failures in talitos - Fix fuzz test failures in qat" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits) crypto: stm32/hash - remove interruptible condition for dma crypto: stm32/hash - Fix hmac issue more than 256 bytes crypto: stm32/crc32 - rename driver file crypto: amcc - remove memset after dma_alloc_coherent crypto: ccp - Switch to SPDX license identifiers crypto: ccp - Validate the the error value used to index error messages crypto: doc - Fix formatting of new crypto engine content crypto: doc - Add parameter documentation crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR crypto: arm64/aes-ce - add 5 way interleave routines crypto: talitos - drop icv_ool crypto: talitos - fix hash on SEC1. crypto: talitos - move struct talitos_edesc into talitos.h lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE crypto/NX: Set receive window credits to max number of CRBs in RxFIFO crypto: asymmetric_keys - select CRYPTO_HASH where needed crypto: serpent - mark __serpent_setkey_sbox noinline crypto: testmgr - dynamically allocate crypto_shash crypto: testmgr - dynamically allocate testvec_config crypto: talitos - eliminate unneeded 'done' functions at build time ...