Re: [PATCH v2] wifi: rtl8xxxu: correct the error value of 'timeout'

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On Fri, Nov 17, 2023 at 02:53:52AM +0000, Ping-Ke Shih wrote:
> 
> 
> > -----Original Message-----
> > From: Su Hui <suhui@xxxxxxxxxxxx>
> > Sent: Wednesday, November 15, 2023 1:01 PM
> > To: Ping-Ke Shih <pkshih@xxxxxxxxxxx>; Jes.Sorensen@xxxxxxxxx
> > Cc: Su Hui <suhui@xxxxxxxxxxxx>; kvalo@xxxxxxxxxx; linux-wireless@xxxxxxxxxxxxxxx;
> > linux-kernel@xxxxxxxxxxxxxxx; kernel-janitors@xxxxxxxxxxxxxxx
> > Subject: [PATCH v2] wifi: rtl8xxxu: correct the error value of 'timeout'
> > 
> > When 'rtl8xxxu_dma_agg_pages <= page_thresh', 'timeout' should equal to
> > 'page_thresh' rather than '4'. Change the code order to fix this problem.
> > 
> > Fixes: fd83f1227826 ("rtl8xxxu: gen1: Add module parameters to adjust DMA aggregation parameters")
> > Signed-off-by: Su Hui <suhui@xxxxxxxxxxxx>
> > ---
> 
> Checking logic of agg_pages and agg_timeout, I think we should correct it
> by below changes. So, NACK this patch. 
> 
> diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> index 43ee7592bc6e..c9e227aed685 100644
> --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
> @@ -4760,7 +4760,7 @@ void rtl8xxxu_gen1_init_aggregation(struct rtl8xxxu_priv *priv)
>         page_thresh = (priv->fops->rx_agg_buf_size / 512);
>         if (rtl8xxxu_dma_agg_pages >= 0) {
>                 if (rtl8xxxu_dma_agg_pages <= page_thresh)
> -                       timeout = page_thresh;
> +                       page_thresh = rtl8xxxu_dma_agg_pages;

Yeah.  That looks correct.  What I suggested earlier was wrong.

regards,
dan carpenter





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