kernel/linux.git/include/linux/string_helpers.h, branch v6.19.11

lib/string_helpers: Introduce parse_int_array()

2025-04-07T14:07:56+00:00

Existing parse_inte_array_user() works with __user buffers only. Separate array parsing from __user bits so the functionality can be utilized with kernel buffers too. Cc: Andy Shevchenko Reviewed-by: Amadeusz Sławiński Signed-off-by: Cezary Rojewski Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250404090337.3564117-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown

lib/string_helpers: Add flags param to string_get_size()

2024-03-01T06:34:42+00:00

The new flags parameter allows controlling - Whether or not the units suffix is separated by a space, for compatibility with sort -h - Whether or not to append a B suffix - we're not always printing bytes. Co-developed-by: Kent Overstreet Signed-off-by: Kent Overstreet Signed-off-by: Andy Shevchenko Reviewed-by: Kent Overstreet Link: https://lore.kernel.org/r/20240229205345.93902-1-andriy.shevchenko@linux.intel.com Signed-off-by: Kees Cook

lib/string_helpers: string_get_size() now returns characters wrote

2023-09-12T03:59:47+00:00

printbuf now needs to know the number of characters that would have been written if the buffer was too small, like snprintf(); this changes string_get_size() to return the the return value of snprintf(). Signed-off-by: Kent Overstreet

lib/string_helpers: Add kstrdup_and_replace() helper

2023-08-05T01:21:50+00:00

Duplicate a NULL-terminated string and replace all occurrences of the old character with a new one. In other words, provide functionality of kstrdup() + strreplace(). Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20230804143910.15504-2-andriy.shevchenko@linux.intel.com Signed-off-by: Stephen Boyd

lib/string_helpers: Split out string_choices.h

2023-06-12T17:14:21+00:00

Some users may only need the string choice APIs. Split the respective header, i.e. string_choices.h. Include it in the string_helpers.h for backward compatibility. Signed-off-by: Andy Shevchenko

string_helpers: Move string_is_valid() to the header

2023-02-10T06:30:24+00:00

Move string_is_valid() to the header for wider use. While at it, rename to string_is_terminated() to be precise about its semantics. Signed-off-by: Andy Shevchenko Reviewed-by: Simon Horman Reviewed-by: Jiri Pirko Link: https://lore.kernel.org/r/20230208133153.22528-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jakub Kicinski

Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2022-10-08T15:56:37+00:00

Pull char/misc and other driver updates from Greg KH: "Here is the large set of char/misc and other small driver subsystem changes for 6.1-rc1. Loads of different things in here: - IIO driver updates, additions, and changes. Probably the largest part of the diffstat - habanalabs driver update with support for new hardware and features, the second largest part of the diff. - fpga subsystem driver updates and additions - mhi subsystem updates - Coresight driver updates - gnss subsystem updates - extcon driver updates - icc subsystem updates - fsi subsystem updates - nvmem subsystem and driver updates - misc driver updates - speakup driver additions for new features - lots of tiny driver updates and cleanups All of these have been in the linux-next tree for a while with no reported issues" * tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits) w1: Split memcpy() of struct cn_msg flexible array spmi: pmic-arb: increase SPMI transaction timeout delay spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes spmi: pmic-arb: correct duplicate APID to PPID mapping logic spmi: pmic-arb: add support to dispatch interrupt based on IRQ status spmi: pmic-arb: check apid against limits before calling irq handler spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq spmi: pmic-arb: handle spurious interrupt spmi: pmic-arb: add a print in cleanup_irq drivers: spmi: Directly use ida_alloc()/free() MAINTAINERS: add TI ECAP driver info counter: ti-ecap-capture: capture driver support for ECAP Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items dt-bindings: counter: add ti,am62-ecap-capture.yaml counter: Introduce the COUNTER_COMP_ARRAY component type counter: Consolidate Counter extension sysfs attribute creation counter: Introduce the Count capture component counter: 104-quad-8: Add Signal polarity component counter: Introduce the Signal polarity component counter: interrupt-cnt: Implement watch_validate callback ...

lib/string_helpers: Introduce parse_int_array_user()

2022-09-05T13:51:46+00:00

Add new helper function to allow for splitting specified user string into a sequence of integers. Internally it makes use of get_options() so the returned sequence contains the integers extracted plus an additional element that begins the sequence and specifies the integers count. Suggested-by: Andy Shevchenko Reviewed-by: Andy Shevchenko Signed-off-by: Cezary Rojewski Link: https://lore.kernel.org/r/20220904102840.862395-2-cezary.rojewski@intel.com Signed-off-by: Mark Brown

lib/string_helpers: Add str_read_write() helper

2022-08-28T16:00:30+00:00

Add str_read_write() helper to return 'read' or 'write' string literal. Signed-off-by: Andy Shevchenko Signed-off-by: Dmitry Rokosov Link: https://lore.kernel.org/r/20220822175011.2886-2-ddrokosov@sberdevices.ru Signed-off-by: Jonathan Cameron

lib/string_helpers: Consolidate string helpers implementation

2022-02-07T21:03:07+00:00

There are a few implementations of string helpers in the tree like yesno() that just returns "yes" or "no" depending on a boolean argument. Those are helpful to output strings to the user or log. In order to consolidate them, prefix all of them str_ prefix to make it clear what they are about and avoid symbol clashes. Taking the commoon `val ? "yes" : "no"` implementation, quite a few users of open coded yesno() could later be converted to the new function: $ git grep '?\s*"yes"\s*' | wc -l 286 $ git grep '?\s*"no"\s*' | wc -l 20 The inlined function should keep the const strings local to each compilation unit, the same way it's now, thus not changing the current behavior. Signed-off-by: Lucas De Marchi Reviewed-by: Andy Shevchenko Acked-by: Jani Nikula Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20220126093951.1470898-2-lucas.demarchi@intel.com