Re: [PATCH 12/12] crypto/sha-mb/sha1_mb.c : Syntax error

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On Mon, 2015-03-16 at 21:50 +1100, Herbert Xu wrote:
> On Fri, Mar 13, 2015 at 11:38:21PM +0200, Ameen Ali wrote:
> > fixing a syntax-error .
> > 
> > Signed-off-by : Ameen Ali <AmeenAli023@xxxxxxxxx>
> 
> Applied.

The commit summary and the commit explanation are a bit misleading. This
is not a syntax error: it actually compiles just fine with GCC 4.8. (I
looked into that wondering whether this was stable material.) It's
telling that the commit explanation doesn't contain a copy of the error
message, which would have been very helpful if this really was a syntax
error.

The old code apparently works because the preprocessor converts
time_before() into time_after(). And the code generated for time_after()
will in its turn be wrapped in parentheses. That is, this generates
valid syntax by, well, accident. So this could as well be labeled a
style fix. A fix for a rather serious style defect, but still.


Paul Bolle

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