Re: [PATCH] rtlwifi: ratelimit skb allocation failure message

From: Eric Dumazet
Date: Tue Feb 10 2015 - 08:17:20 EST


On Tue, 2015-02-10 at 08:54 +0000, Colin King wrote:
> From: Colin Ian King <colin.king@xxxxxxxxxxxxx>
>
> when running low on memory I noticed rtlwifi was producing a large
> quantity of repeated skb allocation failures messages. This should
> be ratelimited to reduce the noise.
>
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> drivers/net/wireless/rtlwifi/pci.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
> index c70efb9..ca0fd50 100644
> --- a/drivers/net/wireless/rtlwifi/pci.c
> +++ b/drivers/net/wireless/rtlwifi/pci.c
> @@ -817,7 +817,7 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
> /* get a new skb - if fail, old one will be reused */
> new_skb = dev_alloc_skb(rtlpci->rxbuffersize);
> if (unlikely(!new_skb)) {
> - pr_err("Allocation of new skb failed in %s\n",
> + pr_err_ratelimited("Allocation of new skb failed in %s\n",
> __func__);

Or even better, remove the message.


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