delta/linux.git/include/linux/kfifo.h, branch proc-cmdline

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

kfifo API type safety

2013-11-15T00:32:23+00:00

This patch enhances the type safety for the kfifo API.  It is now safe
to put const data into a non const FIFO and the API will now generate a
compiler warning when reading from the fifo where the destination
address is pointing to a const variable.

As a side effect the kfifo_put() does now expect the value of an element
instead a pointer to the element.  This was suggested Russell King.  It
make the handling of the kfifo_put easier since there is no need to
create a helper variable for getting the address of a pointer or to pass
integers of different sizes.

IMHO the API break is okay, since there are currently only six users of
kfifo_put().

The code is also cleaner by kicking out the "if (0)" expressions.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stefani Seibold 
Cc: Russell King 
Cc: Hauke Mehrtens 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kfifo: fix kfifo_alloc() to return a signed int value

2010-10-28T01:03:18+00:00

Add a new __kfifo_int_must_check_helper() helper function, which is needed
for kfifo_alloc() to return the right signed integer value.

The origin __kfifo_must_check_helper() helper was renamed into
__kfifo_uint_must_check_helper() to show the sign which is expected and
returned.

(And revert the temporary disabling of __kfifo_must_check_helper())

Signed-off-by: Stefani Seibold 
Acked-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kfifo: disable __kfifo_must_check_helper()

2010-10-26T23:52:04+00:00

This helper is wrong: it coerces signed values into unsigned ones, so code
such as

	if (kfifo_alloc(...) < 0) {
		error
	}

will fail to detect the error.

So let's disable __kfifo_must_check_helper() for 2.6.36.

Cc: Randy Dunlap 
Cc: Stefani Seibold 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kfifo: add parenthesis for macro parameter reference

2010-09-10T01:57:22+00:00

Some macro parameter references inside typeof() operator are not enclosed
with parenthesis.  It should be safer to add them.

Signed-off-by: Huang Ying 
Acked-by: Stefani Seibold 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds