kernel/drivers/char/Kconfig, branch linux-4.3.y

drivers/char: Remove msm_smd_pkt driver

2015-05-24T19:24:35Z

This code is no longer used now that mach-msm has been removed. Delete it. Cc: David Brown Cc: Bryan Huntsman Cc: Daniel Walker Signed-off-by: Stephen Boyd Signed-off-by: Greg Kroah-Hartman

drivers: char: mem: Make /dev/mem an optional device

2015-01-12T13:04:11Z

Adds Kconfig option CONFIG_DEVMEM that allows the /dev/mem device to be disabled. Option defaults to /dev/mem enabled. Signed-off-by: Rob Ward Acked-by: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman

xillybus: Move out of staging

2014-09-24T06:44:16Z

This driver has been functional and stable throughout the year it has spent in the staging area. It has been patched for minor bugs, coding style issues and improvements during this period. This is the second submission of this move-out, after making several style improvements, as suggested by Dan Carpenter. Signed-off-by: Eli Billauer Signed-off-by: Greg Kroah-Hartman

ttyprintk: Allow built as a module

2014-04-16T21:21:06Z

The driver is well written to be used as a module, just the exit call is missing. Reviewed-by: Jean Delvare Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

sonypi: Simplify dependencies

2014-04-06T16:58:13Z

X86 && !64BIT is better expressed as X86_32. Signed-off-by: Jean Delvare Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Mattia Dongili Signed-off-by: Matthew Garrett

raw: set range for MAX_RAW_DEVS

2014-02-07T16:29:46Z

The Kconfig symbol MAX_RAW_DEVS is meant to be between 1 and 65536. But those boundaries are not enforced by its Kconfig entry. Note that MAX_RAW_DEVS is used to set MAX_RAW_MINORS in drivers/char/raw.c. If one would accidentally set MAX_RAW_DEVS to an invalid value, that invalid value will actually end up being used in raw_init(). So add an appropriate range to this Kconfig entry. Signed-off-by: Paul Bolle Signed-off-by: Greg Kroah-Hartman

drivers/char/hpet.c: allow user controlled mmap for user processes

2013-11-13T03:09:11Z

The CONFIG_HPET_MMAP Kconfig option exposes the memory map of the HPET registers to userspace. The Kconfig help points out that in some cases this can be a security risk as some systems may erroneously configure the map such that additional data is exposed to userspace. This is a problem for distributions -- some users want the MMAP functionality but it comes with a significant security risk. In an effort to mitigate this risk, and due to the low number of users of the MMAP functionality, I've introduced a kernel parameter, hpet_mmap_enable, that is required in order to actually have the HPET MMAP exposed. Signed-off-by: Prarit Bhargava Acked-by: Matt Wilson Signed-off-by: Clemens Ladisch Cc: Randy Dunlap Cc: Tomas Winkler Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

stallion: final cleanup

2013-06-03T21:31:39Z

Support for the Stallion multiport serial drivers was removed in v3.1. Clean up their last references in the tree: mainly an outdated Kconfig entry and unneeded documentation. Signed-off-by: Paul Bolle Acked-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman

tty: Added a CONFIG_TTY option to allow removal of TTY

2013-01-19T00:15:27Z

The option allows you to remove TTY and compile without errors. This saves 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 on TTY" to various serial devices and similar drivers that require the TTY layer. Ideally, these dependencies would occur on a common intermediate symbol 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 by removing 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 delta chr_dev_init 166 170 +4 allow_signal 80 82 +2 static.__warned 143 142 -1 disallow_signal 63 62 -1 __set_special_pids 95 94 -1 unregister_console 126 121 -5 start_kernel 546 541 -5 register_console 593 588 -5 copy_from_user 45 40 -5 sys_setsid 128 120 -8 sys_vhangup 32 19 -13 do_exit 1543 1526 -17 bitmap_zero 60 40 -20 arch_local_irq_save 137 117 -20 release_task 674 652 -22 static.spin_unlock_irqrestore 308 260 -48 Signed-off-by: Joe Millenbach Reviewed-by: Jamey Sharp Reviewed-by: Josh Triplett Signed-off-by: Greg Kroah-Hartman

char/misc: remove CONFIG_EXPERIMENTAL dependencies

2012-09-18T15:14:53Z

As discussed at the kernel summit this year, CONFIG_EXPERIMENTAL means nothing, so let's get rid of it. Cc: Kees Cook Cc: Arnd Bergmann Cc: Tomas Winkler Cc: Jiri Kosina Cc: Paul Bolle Cc: Andrew Morton Cc: Anatolij Gustschin Signed-off-by: Greg Kroah-Hartman