J. Bruce Fields <bfields@xxxxxxxxxxxx> wrote:
> > Here's a series of patches to make SunRPC/NFS use no_printk() to implement
> > its null dfprintk() macro (ie. when RPC_DEBUG is disabled). This prevents
> > 'unused variable' errors from occurring when a variable is set only for
> > use in debugging statements and renders RPC/NFS_IFDEBUG unnecessary.
>
> Does this patch series fix any actual warnings? Or does it just change
> the way that we prevent the warnings?
It fixes some unused variable warnings introduced by NFS FS-Cache patches that
I have (a variable is set up and only passed to dfprintk() a couple of times).
I could change those patches to do something different, but I think changing
dfprintk() is actually the right solution as it will catch errors introduced
into dfprintk() calls that are currently reduced to do{}while(0) by the
preprocessor rather than letting the compiler chew on them and then reducing
them to nothing with the optimiser.
David
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