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Re: [PATCH 1/2] wifi: mwifiex: simplify WPA flags setting

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On Wed, Jul 17, 2024 at 10:07:23AM +0200, Francesco Dolcini wrote:
> On Wed, Jul 17, 2024 at 08:26:22AM +0200, Sascha Hauer wrote:
> > On Tue, Jul 16, 2024 at 09:48:26PM +0200, Francesco Dolcini wrote:
> > > On Tue, Jul 16, 2024 at 01:33:27PM +0200, Sascha Hauer wrote:
> > > > The WPA flags setting only depends on the wpa_versions bitfield and not
> > > > on the AKM suite, so move it out of the switch/case to simplify the code
> > > > a bit. No functional change intended.
> > > > 
> > > > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> > > 
> > > Reviewed-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>
> > > 
> > > > ---
> > > >  drivers/net/wireless/marvell/mwifiex/uap_cmd.c | 27 +++++++-------------------
> > > >  1 file changed, 7 insertions(+), 20 deletions(-)
> > > > 
> > > > diff --git a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > > index 491e366119096..8d0cd84d27698 100644
> > > > --- a/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > > +++ b/drivers/net/wireless/marvell/mwifiex/uap_cmd.c
> > > > @@ -46,31 +46,18 @@ int mwifiex_set_secure_params(struct mwifiex_private *priv,
> > > >  
> > > >  	bss_config->key_mgmt_operation |= KEY_MGMT_ON_HOST;
> > > >  
> > > > +	if (params->crypto.wpa_versions & NL80211_WPA_VERSION_1)
> > > > +		bss_config->protocol = PROTOCOL_WPA;
> > > > +	if (params->crypto.wpa_versions & NL80211_WPA_VERSION_2)
> > > > +		bss_config->protocol |= PROTOCOL_WPA2;
> > > > +
> > > 
> > > I am wondering what happens if NL80211_WPA_VERSION_1 is not set, no idea
> > > what's the content of bss_config->protocol ...
> > > 
> > > in any case this is not something that you introduced, but maybe worth
> > > having a look?
> > 
> > bss_config is kzalloced in the only caller of mwifiex_set_secure_params(),
> > so bss_config->protocol is zero on entry.
> > 
> > It might be worth setting it to zero explicitly here to make the code
> > better understandable without having to look at the callers.
> 
> Thanks for looking into this, to me the change is fine as it is, up to
> you if you want to improve it this way.

I just sent a v2 including this change.

Sascha

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