On 08/07/2015, 11:29 AM, Haibo Chen wrote:
> Currently one mrq->data maybe execute dma_map_sg() twice
> when mmc subsystem prepare over one new request, and the
> following log show up:
> sdhci[sdhci_pre_dma_transfer] invalid cookie: 24, next-cookie 25
Thanks, I will test it shortly.
> @@ -2157,16 +2147,10 @@ static void sdhci_pre_req(struct mmc_host *mmc,
> struct mmc_request *mrq,
> {
> struct sdhci_host *host = mmc_priv(mmc);
>
> - if (mrq->data->host_cookie) {
> - mrq->data->host_cookie = 0;
> - return;
> - }
> + mrq->data->host_cookie = COOKIE_UNMAPPED;
Just one question. Should we warn if host_cookie != COOKIE_UNMAPPED
instead of the assignment? In other words, if the assignment is
mandatory, it deserves a comment why.
thanks,
--
js
suse labs
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