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SubjectRe: slip.c is not jiffy wrap proof in 2.2 and 2.3

> > I found that drivers/net/slip.c in 2.2 and in 2.3 is not jiffy wrap proof.
> > it has this code 'if (jiffies - dev->trans_start < 20 * HZ) {'
> That seems wrap proof to me since both of the values are unsigned. In fact
> time_after is an inline of exactly this.
Inline casts everything to long, and there is a comment, that
urges everyone to use these inlines. And after all if this is
wrap proof, then why everybody else converted to these inlines?

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