kernel/linux.git/include/linux/kfifo.h, branch v6.6.131

kfifo: fix kfifo_to_user() return type

2022-07-18T00:31:38+00:00

The kfifo_to_user() macro is supposed to return zero for success or negative error codes. Unfortunately, there is a signedness bug so it returns unsigned int. This only affects callers which try to save the result in ssize_t and as far as I can see the only place which does that is line6_hwdep_read(). TL;DR: s/_uint/_int/. Link: https://lkml.kernel.org/r/YrVL3OJVLlNhIMFs@kili Fixes: 144ecf310eb5 ("kfifo: fix kfifo_alloc() to return a signed int value") Signed-off-by: Dan Carpenter Cc: Stefani Seibold Cc: Randy Dunlap Signed-off-by: Andrew Morton

kfifo: provide kfifo_is_empty_spinlocked()

2020-02-12T11:05:46+00:00

Provide two spinlocked versions of kfifo_is_empty() to be used with spinlocked variants of kfifo_in() and kfifo_out(). Signed-off-by: Bartosz Golaszewski Acked-by: Stefani Seibold

kfifo: provide noirqsave variants of spinlocked in and out helpers

2020-02-12T11:05:46+00:00

Provide variants of spinlocked kfifo_in() and kfifo_out() routines which don't disable interrupts. Signed-off-by: Bartosz Golaszewski Acked-by: Stefani Seibold

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61

2019-05-24T15:36:45+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Michael Ellerman (powerpc) Reviewed-by: Richard Fontana Reviewed-by: Allison Randal Reviewed-by: Kate Stewart Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman

include/linux/kfifo.h: fix comment

2018-04-11T17:28:38+00:00

Clean up unusual formatting in the note about locking. Link: http://lkml.kernel.org/r/20180324002630.13046-1-Valentin.Vidic@CARNet.hr Signed-off-by: Valentin Vidic Cc: Stefani Seibold Cc: Mauro Carvalho Chehab Cc: Christophe JAILLET Cc: Jiri Kosina Cc: Sean Young Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

kfifo: DECLARE_KIFO_PTR(fifo, u64) does not work on arm 32 bit

2017-12-14T15:35:22+00:00

If you try to store u64 in a kfifo (or a struct with u64 members), then the buf member of __STRUCT_KFIFO_PTR will cause 4 bytes padding due to alignment (note that struct __kfifo is 20 bytes on 32 bit). That in turn causes the __is_kfifo_ptr() to fail, which is caught by kfifo_alloc(), which now returns EINVAL. So, ensure that __is_kfifo_ptr() compares to the right structure. Signed-off-by: Sean Young Acked-by: Stefani Seibold Signed-off-by: Mauro Carvalho Chehab

kfifo: Fix comments

2017-10-12T13:41:05+00:00

Fix some typo. Signed-off-by: Christophe JAILLET Signed-off-by: Jiri Kosina

kfifo: fix sparse complaints

2016-03-22T22:36:02+00:00

This patch fix complaints by the sparse tool when using kfifo_put() with non scalar types like structures (i.e. drivers/iio/industrialio-event.c). Casting a pointer to the value and read this pointer instead of directly casting the value will fix this. The generated code is equal. Signed-off-by: Stefani Seibold Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Documentation: Docbook: Fix generated DocBook/kernel-api.xml

2014-09-09T08:34:56+00:00

This patch fix spelling typo found in DocBook/kernel-api.xml. It is because the file is generated from the source comments, I have to fix the comments in source codes. Signed-off-by: Masanari Iida Acked-by: Randy Dunlap Signed-off-by: Jiri Kosina

treewide: Fix typo in Documentation/DocBook

2014-02-19T13:58:17+00:00

This patch fix spelling typo in Documentation/DocBook. It is because .html and .xml files are generated by make htmldocs, I have to fix a typo within the source files. Signed-off-by: Masanari Iida Acked-by: Randy Dunlap Signed-off-by: Jiri Kosina