On 07-06-16 21:10, Rafał Miłecki wrote:
> This change reorders some operations in brcmf_setup_ifmodes in hope to
> make it simpler:
> 1) It allocates arrays right before filling them. This way it's easier
> to follow requested array length as it's immediately followed by
> code filling it. It's easier to check e.g. why we need 4 entries for
> P2P. Other than that it deduplicates some checks (e.g. for P2P).
> 2) It reorders code to first prepare limits and then define a new combo.
> Previously this was mixed (e.g. we were setting num of channels
> before preparing limits).
> 3) It modifies mbss code to use i variable just like other combos do.
Acked-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
> Signed-off-by: Rafał Miłecki <zajec5@xxxxxxxxx>
> ---
> .../broadcom/brcm80211/brcmfmac/cfg80211.c | 37 ++++++++++------------
> 1 file changed, 16 insertions(+), 21 deletions(-)
>
> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> index 4894eb7..33e682e 100644
> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
> @@ -6300,29 +6300,15 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
> if (!combo)
> goto err;
>
> - c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL);
> - if (!c0_limits)
> - goto err;
> -
> - if (p2p) {
> - p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL);
> - if (!p2p_limits)
> - goto err;
> - }
> -
> - if (mbss) {
> - mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL);
> - if (!mbss_limits)
> - goto err;
> - }
> -
> wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
> BIT(NL80211_IFTYPE_ADHOC) |
> BIT(NL80211_IFTYPE_AP);
>
> c = 0;
> i = 0;
> - combo[c].num_different_channels = 1;
> + c0_limits = kcalloc(p2p ? 3 : 2, sizeof(*c0_limits), GFP_KERNEL);
> + if (!c0_limits)
> + goto err;
> c0_limits[i].max = 1;
> c0_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
> if (p2p) {
> @@ -6340,6 +6326,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
> c0_limits[i].max = 1;
> c0_limits[i++].types = BIT(NL80211_IFTYPE_AP);
> }
> + combo[c].num_different_channels = 1;
> combo[c].max_interfaces = i;
> combo[c].n_limits = i;
> combo[c].limits = c0_limits;
> @@ -6347,7 +6334,9 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
> if (p2p) {
> c++;
> i = 0;
> - combo[c].num_different_channels = 1;
> + p2p_limits = kcalloc(4, sizeof(*p2p_limits), GFP_KERNEL);
> + if (!p2p_limits)
> + goto err;
> p2p_limits[i].max = 1;
> p2p_limits[i++].types = BIT(NL80211_IFTYPE_STATION);
> p2p_limits[i].max = 1;
> @@ -6356,6 +6345,7 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
> p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_CLIENT);
> p2p_limits[i].max = 1;
> p2p_limits[i++].types = BIT(NL80211_IFTYPE_P2P_DEVICE);
> + combo[c].num_different_channels = 1;
> combo[c].max_interfaces = i;
> combo[c].n_limits = i;
> combo[c].limits = p2p_limits;
> @@ -6363,14 +6353,19 @@ static int brcmf_setup_ifmodes(struct wiphy *wiphy, struct brcmf_if *ifp)
>
> if (mbss) {
> c++;
> + i = 0;
> + mbss_limits = kcalloc(1, sizeof(*mbss_limits), GFP_KERNEL);
> + if (!mbss_limits)
> + goto err;
> + mbss_limits[i].max = 4;
> + mbss_limits[i++].types = BIT(NL80211_IFTYPE_AP);
> combo[c].beacon_int_infra_match = true;
> combo[c].num_different_channels = 1;
> - mbss_limits[0].max = 4;
> - mbss_limits[0].types = BIT(NL80211_IFTYPE_AP);
> combo[c].max_interfaces = 4;
> - combo[c].n_limits = 1;
> + combo[c].n_limits = i;
> combo[c].limits = mbss_limits;
> }
> +
> wiphy->n_iface_combinations = n_combos;
> wiphy->iface_combinations = combo;
> return 0;
>
--
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