kernel/linux.git/drivers/tty/Kconfig, branch v6.12.80

vt: remove superfluous CONFIG_HW_CONSOLE

2024-01-28T03:03:51+00:00

The config HW_CONSOLE is always identical to the config VT and is not visible in the kernel's build menuconfig. So, CONFIG_HW_CONSOLE is redundant. Replace all references to CONFIG_HW_CONSOLE with CONFIG_VT and remove CONFIG_HW_CONSOLE. Signed-off-by: Lukas Bulwahn Reviewed-by: Javier Martinez Canillas Acked-by: Dmitry Torokhov Reviewed-by: Geert Uytterhoeven Acked-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20240108134102.601-1-lukas.bulwahn@gmail.com Signed-off-by: Greg Kroah-Hartman

Merge commit b320441c04c9 ("Merge tag 'tty-6.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next

2023-08-20T12:29:37+00:00

We need the serial-core fixes in here as well. Signed-off-by: Greg Kroah-Hartman

TIOCSTI: Document CAP_SYS_ADMIN behaviour in Kconfig

2023-08-09T12:12:39+00:00

Clarifies that the LEGACY_TIOCSTI setting is safe to turn off even when running BRLTTY, as it was introduced in commit 690c8b804ad2 ("TIOCSTI: always enable for CAP_SYS_ADMIN"). Signed-off-by: Günther Noack Reviewed-by: Samuel Thibault Link: https://lore.kernel.org/r/20230808201115.23993-1-gnoack3000@gmail.com Signed-off-by: Greg Kroah-Hartman

tty: synclink_gt: mark as BROKEN

2023-07-31T15:16:21+00:00

After walking and trying to clean up the worst in the driver, I came across the pci_driver::remove() _empty_ implementation. That would crash the system at least during hot-unplug (or write to remove in sysfs). There are many other problems: * Initialization + deinitialization apparently comes from no-hotplug support age. It needs a rewrite. * Hairy debug macros. Drop them. * Use of self-baked lists. Replace by list. * The order of the functions should be inverted and fwd decls dropped. * Coding style from the stone age. Fix. * I assume there are many bugs, but the code is unreadable at times, so hard to judge. There is one example posted [1]. I was able to find only one user back in 2016. So mark the driver as BROKEN for some time. Either someone will notice and we can bring the driver to this century. Or we will drop it completely if noone cares. [1] https://lore.kernel.org/all/20230728123901.64225-1-dg573847474@gmail.com/ Signed-off-by: Jiri Slaby (SUSE) Cc: Chengfeng Ye Link: https://lore.kernel.org/r/20230731090002.15680-8-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2023-04-27T19:07:50+00:00

Pull char/misc drivers updates from Greg KH: "Here is the "big" set of char/misc and other driver subsystems for 6.4-rc1. It's pretty big, but due to the removal of pcmcia drivers, almost breaks even for number of lines added vs. removed, a nice change. Included in here are: - removal of unused PCMCIA drivers (finally!) - Interconnect driver updates and additions - Lots of IIO driver updates and additions - MHI driver updates - Coresight driver updates - NVMEM driver updates, which required some OF updates - W1 driver updates and a new maintainer to manage the subsystem - FPGA driver updates - New driver subsystem, CDX, for AMD systems - lots of other small driver updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (196 commits) mcb-lpc: Reallocate memory region to avoid memory overlapping mcb-pci: Reallocate memory region to avoid memory overlapping mcb: Return actual parsed size when reading chameleon table kernel/configs: Drop Android config fragments virt: acrn: Replace obsolete memalign() with posix_memalign() spmi: Add a check for remove callback when removing a SPMI driver spmi: fix W=1 kernel-doc warnings spmi: mtk-pmif: Drop of_match_ptr for ID table spmi: pmic-arb: Convert to platform remove callback returning void spmi: mtk-pmif: Convert to platform remove callback returning void spmi: hisi-spmi-controller: Convert to platform remove callback returning void w1: gpio: remove unnecessary ENOMEM messages w1: omap-hdq: remove unnecessary ENOMEM messages w1: omap-hdq: add SPDX tag w1: omap-hdq: allow compile testing w1: matrox: remove unnecessary ENOMEM messages w1: matrox: use inline over __inline__ w1: matrox: switch from asm to linux header w1: ds2482: do not use assignment in if condition w1: ds2482: drop unnecessary header ...

tty: Fix typo in LEGACY_TIOCSTI Kconfig description

2023-04-05T17:36:00+00:00

Fix typo in LEGACY_TIOCSTI Kconfig description There is a stray ' in the description before the Y. It appears this was meant as a quote for the 'Y'. However, it is more common to use unquoted Y in Kconfig descriptions. Signed-off-by: Hanno Böck Link: https://lore.kernel.org/r/20230330213557.60cf1533.hanno@hboeck.de Signed-off-by: Greg Kroah-Hartman

tty: ipwireless: move Kconfig entry to tty

2023-03-09T16:30:27+00:00

The ipwireless' Kconfig entry is currently sitting in char/pcmcia. But the driver is in tty/. So move the entry to tty/ too. First, it makes sense to have the entry along the driver. Second, whole char/pcmcia is about to pass away. Signed-off-by: Jiri Slaby (SUSE) Cc: Jiri Kosina Cc: David Sterba Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Acked-by: David Sterba Link: https://lore.kernel.org/r/20230222092302.6348-1-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman

tty: Allow TIOCSTI to be disabled

2022-11-03T00:58:03+00:00

TIOCSTI continues its long history of being used in privilege escalation attacks[1]. Prior attempts to provide a mechanism to disable this have devolved into discussions around creating full-blown LSMs to provide arbitrary ioctl filtering, which is hugely over-engineered -- only TIOCSTI is being used this way. 3 years ago OpenBSD entirely removed TIOCSTI[2], Android has had it filtered for longer[3], and the tools that had historically used TIOCSTI either do not need it, are not commonly built with it, or have had its use removed. Provide a simple CONFIG and global sysctl to disable this for the system builders who have wanted this functionality for literally decades now, much like the ldisc_autoload CONFIG and sysctl. [1] https://lore.kernel.org/linux-hardening/Y0m9l52AKmw6Yxi1@hostpad [2] https://undeadly.org/cgi?action=article;sid=20170701132619 [3] https://lore.kernel.org/lkml/CAFJ0LnFGRuEEn1tCLhoki8ZyWrKfktbF+rwwN7WzyC_kBFoQVA@mail.gmail.com/ Cc: Greg Kroah-Hartman Cc: Jiri Slaby Cc: Simon Brand Signed-off-by: Kees Cook Link: https://lore.kernel.org/r/20221022182949.2684794-2-keescook@chromium.org Signed-off-by: Greg Kroah-Hartman

tty: add rpmsg driver

2021-10-21T10:35:35+00:00

This driver exposes a standard TTY interface on top of the rpmsg framework through a rpmsg service. This driver supports multi-instances, offering a /dev/ttyRPMSGx entry per rpmsg endpoint. Reviewed-by: Mathieu Poirier Signed-off-by: Arnaud Pouliquen Link: https://lore.kernel.org/r/20211015094701.5732-3-arnaud.pouliquen@foss.st.com Signed-off-by: Greg Kroah-Hartman

Merge tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml

2021-07-09T17:19:13+00:00

Pull UML updates from Richard Weinberger: - Support for optimized routines based on the host CPU - Support for PCI via virtio - Various fixes * tag 'for-linus-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: remove unneeded semicolon in um_arch.c um: Remove the repeated declaration um: fix error return code in winch_tramp() um: fix error return code in slip_open() um: Fix stack pointer alignment um: implement flush_cache_vmap/flush_cache_vunmap um: add a UML specific futex implementation um: enable the use of optimized xor routines in UML um: Add support for host CPU flags and alignment um: allow not setting extra rpaths in the linux binary um: virtio/pci: enable suspend/resume um: add PCI over virtio emulation driver um: irqs: allow invoking time-travel handler multiple times um: time-travel/signals: fix ndelay() in interrupt um: expose time-travel mode to userspace side um: export signals_enabled directly um: remove unused smp_sigio_handler() declaration lib: add iomem emulation (logic_iomem) um: allow disabling NO_IOMEM