netdev - Re: [PATCH V2] brcmfmac: print error if p2p

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Message-ID: <5746138D.2090700@broadcom.com>
Date:	Wed, 25 May 2016 23:05:17 +0200
From:	Arend van Spriel <arend.vanspriel@...adcom.com>
To:	Rafał Miłecki <zajec5@...il.com>,
	Kalle Valo <kvalo@...eaurora.org>
Cc:	Brett Rudley <brudley@...adcom.com>,
	Arend van Spriel <arend@...adcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@...adcom.com>,
	Hante Meuleman <meuleman@...adcom.com>,
	Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>,
	"open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" 
	<linux-wireless@...r.kernel.org>,
	"open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" 
	<brcm80211-dev-list@...adcom.com>,
	"open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] brcmfmac: print error if p2p_ifadd firmware command
 fails

On 24-05-16 23:05, Rafał Miłecki wrote:
> This is helpful for debugging, without this all I was getting from "iw"
> command on device with BCM43602 was:
>> command failed: Too many open files in system (-23)
> 
> Signed-off-by: Rafał Miłecki <zajec5@...il.com>
> ---
> V2: s/in/if/ in commit message
> ---
>  drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
> index 1652a48..f7b7e29 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
> @@ -2031,7 +2031,7 @@ static int brcmf_p2p_request_p2p_if(struct brcmf_p2p_info *p2p,
>  	err = brcmf_fil_iovar_data_set(ifp, "p2p_ifadd", &if_request,
>  				       sizeof(if_request));
>  	if (err)
> -		return err;
> +		brcmf_err("p2p_ifadd failed %d\n", err);

I would prefer adding a more generic failure message including ifname
and type in brcmf_cfg80211_add_iface() in cfg80211.c.

Regards,
Arend

>  
>  	return err;
>  }
>