Re: [PATCH] fix idiocy in asd_init_lseq_mdp()

From: Al Viro
Date: Mon Sep 25 2006 - 13:39:50 EST


On Mon, Sep 25, 2006 at 10:16:34AM -0700, Luben Tuikov wrote:
> --- Douglas Gilbert <dougg@xxxxxxxxxx> wrote:
> > Al Viro wrote:
> > > To whoever had written that code:
> > >
> > > a) priority of >> is higher than that of &
> > > b) priority of typecast is higher than that of any binary operator
> > > c) learn the fscking C
> [...]
> > BTW Luben was pointing out that the call you patched
> > and the following call can be combined into a less
> > trouble prone asd_write_reg_dword() call.
>
> More than that -- I looked at the history of that
> file/line and the code as I had written it _never_ had
> that broken cast and shift mess.

Far more interesting question: where does the hardware expect to see the
upper 16 bits of that 32bit value? Which one it is - LmSEQ_INTEN_SAVE(lseq)
ori LmSEQ_INTEN_SAVE(lseq) + 2?
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