diff options
| author | Alexey Dobriyan <adobriyan@sw.ru> | 2007-05-08 00:28:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-08 11:15:08 -0700 |
| commit | ffb45122766db220d0bf3d01848d575fbbcb6430 (patch) | |
| tree | a8fedf0518407ad12578a7c03aa2c3344f11ff3c /kernel/kallsyms.c | |
| parent | ea07890a680273b25127129fb555aac0d9324bea (diff) | |
| download | lwn-ffb45122766db220d0bf3d01848d575fbbcb6430.tar.gz lwn-ffb45122766db220d0bf3d01848d575fbbcb6430.zip | |
Simplify kallsyms_lookup()
Several kallsyms_lookup() pass dummy arguments but only need, say, module's
name. Make kallsyms_lookup() accept NULLs where possible.
Also, makes picture clearer about what interfaces are needed for all symbol
resolving business.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kallsyms.c')
| -rw-r--r-- | kernel/kallsyms.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c index f1ea6f66ac6c..f66da025cb7f 100644 --- a/kernel/kallsyms.c +++ b/kernel/kallsyms.c @@ -214,8 +214,10 @@ static unsigned long get_symbol_pos(unsigned long addr, symbol_end = (unsigned long)_etext; } - *symbolsize = symbol_end - symbol_start; - *offset = addr - symbol_start; + if (symbolsize) + *symbolsize = symbol_end - symbol_start; + if (offset) + *offset = addr - symbol_start; return low; } |