linux.git/lib/parser.c, branch v5.10.195

kernel.h: split out kstrtox() and simple_strtox() to a separate header

2023-06-21T13:45:35+00:00

[ Upstream commit 4c52729377eab025b238caeed48994a39c3b73f2 ]

kernel.h is being used as a dump for all kinds of stuff for a long time.
Here is the attempt to start cleaning it up by splitting out kstrtox() and
simple_strtox() helpers.

At the same time convert users in header and lib folders to use new
header.  Though for time being include new header back to kernel.h to
avoid twisted indirected includes for existing users.

[andy.shevchenko@gmail.com: fix documentation references]
  Link: https://lkml.kernel.org/r/20210615220003.377901-1-andy.shevchenko@gmail.com

Link: https://lkml.kernel.org/r/20210611185815.44103-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko 
Acked-by: Jonathan Cameron 
Cc: Francis Laniel 
Cc: Randy Dunlap 
Cc: Kars Mulder 
Cc: Trond Myklebust 
Cc: Anna Schumaker 
Cc: "J. Bruce Fields" 
Cc: Chuck Lever 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds 
Stable-dep-of: 4acfe3dfde68 ("test_firmware: prevent race conditions by a correct implementation of locking")
Signed-off-by: Sasha Levin

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 230

2019-06-19T15:09:06+00:00

Based on 2 normalized pattern(s):

  this source code is licensed under the gnu general public license
  version 2 see the file copying for more details

  this source code is licensed under general public license version 2
  see

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 52 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Allison Randal 
Reviewed-by: Alexios Zavras 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.449021192@linutronix.de
Signed-off-by: Greg Kroah-Hartman

lib/parser.c: switch match_number() over to use match_strdup()

2018-10-31T15:54:12+00:00

This simplifies the code.  No change in behavior.

Link: http://lkml.kernel.org/r/20180830194727.191555-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers 
Reviewed-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/parser.c: switch match_u64int() over to use match_strdup()

2018-10-31T15:54:12+00:00

This simplifies the code.  No change in behavior.

Link: http://lkml.kernel.org/r/20180830194814.192880-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers 
Reviewed-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/parser.c: switch match_strdup() over to use kmemdup_nul()

2018-10-31T15:54:12+00:00

This simplifies the code.  No change in behavior.

Link: http://lkml.kernel.org/r/20180830194436.188867-1-ebiggers@kernel.org
Signed-off-by: Eric Biggers 
Reviewed-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

parser: add u64 number parser

2016-12-06T08:17:03+00:00

Will be used by the nvme-fabrics FC transport in parsing options

Signed-off-by: James Smart 
Signed-off-by: Sagi Grimberg

lib/parser.c: put EXPORT_SYMBOLs in the conventional place

2014-01-24T00:36:55+00:00

Cc: Du, Changbin 
Cc: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/parser.c: add match_wildcard() function

2014-01-24T00:36:55+00:00

match_wildcard function is a simple implementation of wildcard
matching algorithm. It only supports two usual wildcardes:
    '*' - matches zero or more characters
    '?' - matches one character
This algorithm is safe since it is non-recursive.

Signed-off-by: Du, Changbin 
Cc: Jason Baron 
Cc: Joe Perches 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/parser.c: fix up comments for valid return values from match_number

2013-02-22T01:22:25+00:00

match_number() has return values of -ENOMEM, -EINVAL and -ERANGE.  So, for
all the functions calling match_number, the return value should include
these values.  Fix up the comments to reflect the correct values.

Signed-off-by: Namjae Jeon 
Signed-off-by: Amit Sahrawat 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

lib/parser.c: avoid overflow in match_number()

2012-10-05T18:04:56+00:00

The result of converting an integer value to another signed integer type
that's unable to represent the original value is implementation defined.
(See notes in section 6.3.1.3 of the C standard.)

In match_number(), the result of simple_strtol() (which returns type long)
is assigned to a value of type int.

Instead, handle the result of simple_strtol() in a well-defined way, and
return -ERANGE if the result won't fit in the int variable used to hold
the parsed result.

No current callers pay attention to the particular error value returned,
so this additional return code shouldn't do any harm.

[akpm@linux-foundation.org: coding-style tweaks]
Signed-off-by: Alex Elder 
Cc: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds