kernel/linux.git/drivers/tty/sysrq.c, branch v6.19.11

tty: sysrq: delete unnecessary check

2025-08-13T15:42:26+00:00

This code checks if (write) is true twice in a row. It's more readable to delete the first check. Signed-off-by: Dan Carpenter Reviewed-by: Jiri Slaby Link: https://lore.kernel.org/r/aJNAhHtKkhWjosDV@stanley.mountain Signed-off-by: Greg Kroah-Hartman

Input: sysrq: mv sysrq into drivers/tty/sysrq.c

2025-07-23T09:52:48+00:00

Move both sysrq ctl_table and supported sysrq_sysctl_handler helper function into drivers/tty/sysrq.c. Replaced the __do_proc_dointvec in helper function with do_proc_dointvec_minmax as the former is local to kernel/sysctl.c. Here we use the minmax version of do_proc_dointvec because do_proc_dointvec is static and calling do_proc_dointvec_minmax with a NULL min and max is the same as calling do_proc_dointvec. This is part of a greater effort to move ctl tables into their respective subsystems which will reduce the merge conflicts in kernel/sysctl.c. Reviewed-by: Kees Cook Acked-by: Greg Kroah-Hartman Signed-off-by: Joel Granados

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

Merge tag 'printk-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux

2024-11-20T17:21:11+00:00

Pull printk updates from Petr Mladek: - Print more precise information about the printk log buffer memory usage. - Make sure that the sysrq title is shown on the console even when deferred. - Do not enable earlycon by `console=` which is meant to disable the default console. * tag 'printk-for-6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printk: add dummy printk_force_console_enter/exit helpers tty: sysrq: Use printk_force_console context on __handle_sysrq printk: Introduce FORCE_CON flag printk: Improve memory usage logging during boot init: Don't proxy `console=` to earlycon

tty: sysrq: Use printk_force_console context on __handle_sysrq

2024-11-11T11:53:31+00:00

By using the printk_force_console the loglevel workaround can be removed. The workaround existed to always send the sysrq header message to all consoles not matter what was the current loglevel, but it won't work for deferred messages, since the loglevel can be restore before the message is printed, suppressing the message that wasn't supposed to be suppressed by the workaround. Signed-off-by: Marcos Paulo de Souza Reviewed-by: John Ogness Reviewed-by: Petr Mladek Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20241105-printk-loud-con-v2-2-bd3ecdf7b0e4@suse.com Signed-off-by: Petr Mladek

Merge tag 'v6.11-rc1' into for-6.12

2024-07-30T19:30:11+00:00

Linux 6.11-rc1

Merge tag 'devicetree-fixes-for-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2024-07-27T19:46:16+00:00

Pull more devicetree updates from Rob Herring: "Most of this is a treewide change to of_property_for_each_u32() which was small enough to do in one go before rc1 and avoids the need to create of_property_for_each_u32_some_new_name(). - Treewide conversion of of_property_for_each_u32() to drop internal arguments making struct property opaque - Add binding for Amlogic A4 SoC watchdog - Fix constraints for AD7192 'single-channel' property" * tag 'devicetree-fixes-for-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: dt-bindings: iio: adc: ad7192: Fix 'single-channel' constraints of: remove internal arguments from of_property_for_each_u32() dt-bindings: watchdog: add support for Amlogic A4 SoCs

of: remove internal arguments from of_property_for_each_u32()

2024-07-25T11:53:47+00:00

The of_property_for_each_u32() macro needs five parameters, two of which are primarily meant as internal variables for the macro itself (in the for() clause). Yet these two parameters are used by a few drivers, and this can be considered misuse or at least bad practice. Now that the kernel uses C11 to build, these two parameters can be avoided by declaring them internally, thus changing this pattern: struct property *prop; const __be32 *p; u32 val; of_property_for_each_u32(np, "xyz", prop, p, val) { ... } to this: u32 val; of_property_for_each_u32(np, "xyz", val) { ... } However two variables cannot be declared in the for clause even with C11, so declare one struct that contain the two variables we actually need. As the variables inside this struct are not meant to be used by users of this macro, give the struct instance the noticeable name "_it" so it is visible during code reviews, helping to avoid new code to use it directly. Most usages are trivially converted as they do not use those two parameters, as expected. The non-trivial cases are: - drivers/clk/clk.c, of_clk_get_parent_name(): easily doable anyway - drivers/clk/clk-si5351.c, si5351_dt_parse(): this is more complex as the checks had to be replicated in a different way, making code more verbose and somewhat uglier, but I refrained from a full rework to keep as much of the original code untouched having no hardware to test my changes All the changes have been build tested. The few for which I have the hardware have been runtime-tested too. Reviewed-by: Andre Przywara # drivers/clk/sunxi/clk-simple-gates.c, drivers/clk/sunxi/clk-sun8i-bus-gates.c Acked-by: Bartosz Golaszewski # drivers/gpio/gpio-brcmstb.c Acked-by: Nicolas Ferre # drivers/irqchip/irq-atmel-aic-common.c Acked-by: Jonathan Cameron # drivers/iio/adc/ti_am335x_adc.c Acked-by: Uwe Kleine-König # drivers/pwm/pwm-samsung.c Acked-by: Richard Leitner # drivers/usb/misc/usb251xb.c Acked-by: Mark Brown # sound/soc/codecs/arizona.c Reviewed-by: Richard Fitzgerald # sound/soc/codecs/arizona.c Acked-by: Michael Ellerman # arch/powerpc/sysdev/xive/spapr.c Acked-by: Stephen Boyd # clk Signed-off-by: Luca Ceresoli Acked-by: Lee Jones Link: https://lore.kernel.org/r/20240724-of_property_for_each_u32-v3-1-bea82ce429e2@bootlin.com Signed-off-by: Rob Herring (Arm)

sched_ext: Add sysrq-S which disables the BPF scheduler

2024-06-18T20:09:18+00:00

This enables the admin to abort the BPF scheduler and revert to CFS anytime. Signed-off-by: Tejun Heo Reviewed-by: David Vernet Acked-by: Josh Don Acked-by: Hao Luo Acked-by: Barret Rhoden