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Commit graph kernel_a52xq/lib/parser.c
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parser: add u64 number parser
Will be used by the nvme-fabrics FC transport in parsing options

Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>

James Smart   authored and   Sagi Grimberg   commited 2016-12-06 10:17:03 +02:00
a317178e36
lib/parser.c: put EXPORT_SYMBOLs in the conventional place
Cc: Du, Changbin <changbin.du@gmail.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Andrew Morton   authored and   Linus Torvalds   commited 2014-01-23 16:36:55 -08:00
a3d2cca43c
lib/parser.c: add match_wildcard() function
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 <changbin.du@gmail.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Du, Changbin   authored and   Linus Torvalds   commited 2014-01-23 16:36:55 -08:00
aace05097a
lib/parser.c: fix up comments for valid return values from match_number
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 <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Namjae Jeon   authored and   Linus Torvalds   commited 2013-02-21 17:22:25 -08:00
53769627b9
lib/parser.c: avoid overflow in match_number()
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 <elder@inktank.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Alex Elder   authored and   Linus Torvalds   commited 2012-10-06 03:04:56 +09:00
77dd3b0bd1
lib: reduce the use of module.h wherever possible
For files only using THIS_MODULE and/or EXPORT_SYMBOL, map
them onto including export.h -- or if the file isn't even
using those, then just delete the include.  Fix up any implicit
include dependencies that were being masked by module.h along
the way.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

Paul Gortmaker   commited 2012-03-07 15:04:04 -05:00
8bc3bcc93a
Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>

Lucas De Marchi   commited 2011-03-31 11:26:23 -03:00
25985edced
lib/parser: cleanup match_number()
Use new variable 'len' to make code more readable.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Namhyung Kim   authored and   Linus Torvalds   commited 2010-10-26 16:52:19 -07:00
5d051decfc
parser: remove unnecessary strlen()
No functional change.  Cache strlen() result to avoid recalculating it up
to 3 times on the worst case.

Reduces code size a little by 32 bytes:
   text    data     bss     dec     hex filename
   1385       0       0    1385     569 lib/parser.o-BEFORE
   1353       0       0    1353     549 lib/parser.o-AFTER

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

André Goddard Rosa   authored and   Linus Torvalds   commited 2009-12-15 08:53:33 -08:00
b5f54b07c0
vfs: Use const for kernel parser table
This is a much better version of a previous patch to make the parser
tables constant. Rather than changing the typedef, we put the "const" in
all the various places where its required, allowing the __initconst
exception for nfsroot which was the cause of the previous trouble.

This was posted for review some time ago and I believe its been in -mm
since then.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Alexander Viro <aviro@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Steven Whitehouse   authored and   Linus Torvalds   commited 2008-10-13 10:10:37 -07:00
a447c09324
add match_strlcpy() us it to make v9fs make uname and remotename parsing more robust
match_strcpy() is a somewhat creepy function: the caller needs to make sure
that the destination buffer is big enough, and when he screws up or
forgets, match_strcpy() happily overruns the buffer.

There's exactly one customer: v9fs_parse_options().  I believe it currently
can't overflow its buffer, but that's not exactly obvious.

The source string is a substing of the mount options.  The kernel silently
truncates those to PAGE_SIZE bytes, including the terminating zero.  See
compat_sys_mount() and do_mount().

The destination buffer is obtained from __getname(), which allocates from
name_cachep, which is initialized by vfs_caches_init() for size PATH_MAX.

We're safe as long as PATH_MAX <= PAGE_SIZE.  PATH_MAX is 4096.  As far as
I know, the smallest PAGE_SIZE is also 4096.

Here's a patch that makes the code a bit more obviously correct.  It
doesn't depend on PATH_MAX <= PAGE_SIZE.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Cc: Latchesar Ionkov <lucho@ionkov.net>
Cc: Jim Meyering <meyering@redhat.com>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

Markus Armbruster   authored and   Eric Van Hensbergen   commited 2008-05-14 19:23:25 -05:00
b32a09db4f
[AFS]: Make the match_*() functions take const options.
Make the match_*() functions take a const pointer to the options table
and make strings pointers in the options table const too.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

David Howells   authored and   David S. Miller   commited 2007-05-03 03:10:39 -07:00
ef4533f8af
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

Linus Torvalds   commited 2005-04-16 15:20:36 -07:00
1da177e4c3