Re: [PATCH] Fix bytecount result from printk()

From: Mark Lord
Date: Thu Dec 01 2005 - 16:09:09 EST


Andi Kleen wrote:
"David S. Miller" <davem@xxxxxxxxxxxxx> writes:
..
Wow, that's amazing. :)

Taking the blame.

I bet these can easily be removed, and since printk() is such
a core thing, simplifying it should trump whatever benfits
these few call sites have from getting a return byte count.

I used it for linewrapping in the oops output.
...
Actually I would expect more users from sprintf and snprintf
(e.g. common in /proc output to compute the return value of the read) and that is exactly the same code path.

When I grep the 2.6.15-rc3 kernel tree, the *only* use of vprintk
seems to be for doing printk(). It does not seem to be used for
the sprintf/snprintf functions. Actually it is the other way around,
where vprintk() calls those functions.

So no problem there, and vprintk() really doesn't need to return anything.

Cheers
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