[PATCH] rt2800: enable MFP support unconditionally

[PATCH] rt2800: enable MFP support unconditionally

[Rui Salvaterra]

This gives us WPA3 support out of the box without having to manually disable
hardware crypto. The driver will fall back to software crypto if the connection
requires management frame protection.

Suggested-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
---
 drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 +---
 drivers/net/wireless/ralink/rt2x00/rt2x00mac.c | 3 ++-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
index 6beac1f74e7c..a779fe771a55 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
@@ -9971,9 +9971,7 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	if (!rt2x00_is_usb(rt2x00dev))
 		ieee80211_hw_set(rt2x00dev->hw, HOST_BROADCAST_PS_BUFFERING);
 
-	/* Set MFP if HW crypto is disabled. */
-	if (rt2800_hwcrypt_disabled(rt2x00dev))
-		ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
+	ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
 
 	SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
 	SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 32efbc8e9f92..4f19581edd0f 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -468,7 +468,8 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
-	if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
+	/* The hardware can't do MFP */
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || sta->mfp)
 		return -EOPNOTSUPP;
 
 	/*
-- 
2.26.2

Re: [PATCH] rt2800: enable MFP support unconditionally

[Rui Salvaterra]

Crap. Please ignore this, I sent the old version by mistake.

On Mon, 25 May 2020 at 14:45, Rui Salvaterra <rsalvaterra@gmail.com> wrote:
>
> This gives us WPA3 support out of the box without having to manually disable
> hardware crypto. The driver will fall back to software crypto if the connection
> requires management frame protection.
>
> Suggested-by: Stanislaw Gruszka <stf_xl@wp.pl>
> Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
> ---
>  drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 4 +---
>  drivers/net/wireless/ralink/rt2x00/rt2x00mac.c | 3 ++-
>  2 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> index 6beac1f74e7c..a779fe771a55 100644
> --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c
> @@ -9971,9 +9971,7 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
>         if (!rt2x00_is_usb(rt2x00dev))
>                 ieee80211_hw_set(rt2x00dev->hw, HOST_BROADCAST_PS_BUFFERING);
>
> -       /* Set MFP if HW crypto is disabled. */
> -       if (rt2800_hwcrypt_disabled(rt2x00dev))
> -               ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
> +       ieee80211_hw_set(rt2x00dev->hw, MFP_CAPABLE);
>
>         SET_IEEE80211_DEV(rt2x00dev->hw, rt2x00dev->dev);
>         SET_IEEE80211_PERM_ADDR(rt2x00dev->hw,
> diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
> index 32efbc8e9f92..4f19581edd0f 100644
> --- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
> +++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
> @@ -468,7 +468,8 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
>         if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
>                 return 0;
>
> -       if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
> +       /* The hardware can't do MFP */
> +       if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || sta->mfp)
>                 return -EOPNOTSUPP;
>
>         /*
> --
> 2.26.2
>