Messages in this thread | | | Date | Fri, 6 Jan 2006 19:48:11 +0100 | From | Jens Axboe <> | Subject | Re: [PATCH] bio: gcc warning fix. |
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On Fri, Jan 06 2006, Jesper Juhl wrote: > gcc is right to warn in the sense that it doesn't know if > bvec_alloc_bs() will read or write into idx when its address is passed
The function is right there, on top of bio_alloc_bioset(). It's even inlined. gcc has absolutely no reason to complain.
> to it. But since we know that bvec_alloc_bs() only reads from it after
bio_alloc_bioset() you mean.
> having assigned a value we know that gcc's warning is wrong, idx can > never *actually* be used uninitialized.
Indeed, that's the whole point. For the original submitter, you are not the first to submit this. See archives for basically the same thread as this one...
-- Jens Axboe
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