On 27 September 2016 at 13:27, Kalle Valo <kvalo@xxxxxxxxxxxxxx> wrote: > Arend Van Spriel <arend.vanspriel@xxxxxxxxxxxx> writes: > >> On 27-9-2016 11:14, Rafał Miłecki wrote: >>> From: Rafał Miłecki <rafal@xxxxxxxxxx> >>> >>> Flowrings contain skbs waiting for transmission that were passed to us >>> by netif. It means we checked every one of them looking for 802.1x >>> Ethernet type. When deleting flowring we have to use freeing function >>> that will check for 802.1x type as well. >>> >>> Freeing skbs without a proper check was leading to counter not being >>> properly decreased. This was triggering a WARNING every time >>> brcmf_netdev_wait_pend8021x was called. >> >> Acked-by: Arend van Spriel <arend@xxxxxxxxxxxx> >>> Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx> >>> --- >>> Kalle: this isn't important enough for 4.8 as it's too late for that. >>> >>> I'd like to get it for 4.9 however, as this fixes bug that could lead >>> to WARNING on every add_key/del_key call. We was struggling with these >>> WARNINGs for some time and this fixes one of two problems causing them. > > Ok, I'll queue this for 4.9. > >> Please mark it for stable as well. > > I can add that. Any ideas how old releases stable releases should this > go to? I was analyzing this. 1) This patch uses brcmf_get_ifp which is available in 4.4+ only. 2) It applies cleanly to 4.5+ only due to 32f90caa7debd ("brcmfmac: Increase nr of supported flowrings.") 3) 4.4 would also require applying to the patch without broadcom/ subdir That said I suggest 4.5+. Any objections? -- Rafał