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authorRichard Kennedy <richard@rsk.demon.co.uk>2008-02-23 15:24:01 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-23 17:12:16 -0800
commit00d6296145c6b671a9886e380efc24f2731d856a (patch)
tree2dbef82cc0b1b89d23187ade50ee4042c5bc10b0 /init
parentff10e5dc1781cd0121f8ee936234c222ff15c105 (diff)
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op-kernel-dev-00d6296145c6b671a9886e380efc24f2731d856a.tar.gz
kernel-doc: fix function-pointer-parameter parsing
When running "make htmldocs" I'm seeing some non-fatal perl errors caused by trying to parse the callback function definitions in blk-core.c. The errors are "Use of uninitialized value in concatenation (.)..." in combination with: Warning(linux-2.6.25-rc2/block/blk-core.c:1877): No description found for parameter '' The function pointers are defined without a * i.e. int (drv_callback)(struct request *) The compiler is happy with them, but kernel-doc isn't. This patch teaches create_parameterlist in kernel-doc to parse this type of function pointer definition, but is it the right way to fix the problem ? The problem only seems to occur in blk-core.c. However with the patch applied, kernel-doc finds the correct parameter description for the callback in blk_end_request_callback, which is doesn't normally. I thought it would be a bit odd to change to code to use the more normal form of function pointers just to get the documentation to work, so I fixed kernel-doc instead - even though this is teaching it to understand code that might go away (The comment for blk_end_request_callback says that it should not be used and will removed at some point). Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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