[PATCH] dmaengine: at_hdmac: fix dma_addr_t printing
Vinod Koul
vinod.koul at intel.com
Tue Dec 8 08:18:38 PST 2015
On Tue, Dec 08, 2015 at 04:34:28PM +0100, Arnd Bergmann wrote:
> A recent patch tried to improve the printk output of the atc_dump_lli()
> function but introduced a bug, in which we end up dereferencing a
> dma address as a pointer, and we even get a warning for it:
>
> drivers/dma/at_hdmac_regs.h: In function 'atc_dump_lli':
> drivers/dma/at_hdmac_regs.h:388:4: warning: format '%p' expects argument of type 'void *', but argument 3 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=]
>
> This changes the code to pass the DMA address by reference, as expected
> by printk.
Thanks for this but i was planning to drop 096117032a36 "dmaengine: do not
use 0x in front of %pad" as recomended by Dmitry, so we should fix this
cleanly
I will push out updated tree in a short while...
>
> Signed-off-by: Arnd Bergmann <arnd at arndb.de>
> Fixes: 096117032a36 ("dmaengine: do not use 0x in front of %pad")
> ---
> drivers/dma/at_hdmac_regs.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
> index 610907dbc11a..0474e4a0f02a 100644
> --- a/drivers/dma/at_hdmac_regs.h
> +++ b/drivers/dma/at_hdmac_regs.h
> @@ -386,8 +386,8 @@ static void atc_dump_lli(struct at_dma_chan *atchan, struct at_lli *lli)
> {
> dev_crit(chan2dev(&atchan->chan_common),
> " desc: s%pad d%pad ctrl0x%x:0x%x l%pad\n",
> - lli->saddr, lli->daddr,
> - lli->ctrla, lli->ctrlb, lli->dscr);
> + &lli->saddr, &lli->daddr,
> + lli->ctrla, lli->ctrlb, &lli->dscr);
> }
>
>
> --
> 2.1.0.rc2
>
>
--
~Vinod
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