From: Arend van Spriel <arend.vanspriel@broadcom.com>
To: "Kalle Valo" <kvalo@codeaurora.org>, "Rafał Miłecki" <rafal@milecki.pl>
Cc: "James Hughes" <james.hughes@raspberrypi.org>,
brcm80211-dev-list.pdl@broadcom.com,
bridge@lists.linux-foundation.org, netdev@vger.kernel.org,
"Chi-Hsien Lin" <chi-hsien.lin@cypress.com>,
"Rafał Miłecki" <zajec5@gmail.com>,
linux-wireless@vger.kernel.org,
"Hante Meuleman" <hante.meuleman@broadcom.com>,
"Pieter-Paul Giesberts" <pieter-paul.giesberts@broadcom.com>,
"Wright Feng" <wright.feng@cypress.com>,
"Felix Fietkau" <nbd@nbd.name>,
brcm80211-dev-list@cypress.com,
"Franky Lin" <franky.lin@broadcom.com>
Subject: Re: [Bridge] [PATCH] brcmfmac: drop Inter-Access Point Protocol packets by default
Date: Wed, 14 Mar 2018 20:55:28 -0000 [thread overview]
Message-ID: <5AA98C3B.2070406@broadcom.com> (raw)
In-Reply-To: <877eqe63kr.fsf@codeaurora.org>
On 3/14/2018 5:10 PM, Kalle Valo wrote:
> Rafał Miłecki <rafal@milecki.pl> writes:
>
>>>> + unsigned char *eth_data = skb_mac_header(skb) + ETH_HLEN;
>>>> +#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
>>>
>>> #ifndef?
>>
>> I followed what is used in the include/linux/etherdevice.h. Is that a
>> good exceuse? Could it be there any some good reason for #if defined()?
>
> Don't know, maybe just a matter of taste? But it would be nice to know
> the background behind #ifdef vs #if defined(), never figured it out why
> two different forms.
Well. In this case you could use either one, but if you have more
conditions #if defined() is bit more efficient:
#ifdef A
#ifdef B
#endif
#endif
vs.
#if defined(A) && defined(B)
Regards,
Arend
WARNING: multiple messages have this Message-ID (diff)
From: Arend van Spriel <arend.vanspriel@broadcom.com>
To: "Kalle Valo" <kvalo@codeaurora.org>, "Rafał Miłecki" <rafal@milecki.pl>
Cc: "Rafał Miłecki" <zajec5@gmail.com>,
"Franky Lin" <franky.lin@broadcom.com>,
"Hante Meuleman" <hante.meuleman@broadcom.com>,
"Chi-Hsien Lin" <chi-hsien.lin@cypress.com>,
"Wright Feng" <wright.feng@cypress.com>,
"Pieter-Paul Giesberts" <pieter-paul.giesberts@broadcom.com>,
"James Hughes" <james.hughes@raspberrypi.org>,
linux-wireless@vger.kernel.org,
brcm80211-dev-list.pdl@broadcom.com,
brcm80211-dev-list@cypress.com, netdev@vger.kernel.org,
"Linus Lüssing" <linus.luessing@c0d3.blue>,
"Felix Fietkau" <nbd@nbd.name>,
bridge@lists.linux-foundation.org
Subject: Re: [PATCH] brcmfmac: drop Inter-Access Point Protocol packets by default
Date: Wed, 14 Mar 2018 21:55:23 +0100 [thread overview]
Message-ID: <5AA98C3B.2070406@broadcom.com> (raw)
In-Reply-To: <877eqe63kr.fsf@codeaurora.org>
On 3/14/2018 5:10 PM, Kalle Valo wrote:
> Rafał Miłecki <rafal@milecki.pl> writes:
>
>>>> + unsigned char *eth_data = skb_mac_header(skb) + ETH_HLEN;
>>>> +#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
>>>
>>> #ifndef?
>>
>> I followed what is used in the include/linux/etherdevice.h. Is that a
>> good exceuse? Could it be there any some good reason for #if defined()?
>
> Don't know, maybe just a matter of taste? But it would be nice to know
> the background behind #ifdef vs #if defined(), never figured it out why
> two different forms.
Well. In this case you could use either one, but if you have more
conditions #if defined() is bit more efficient:
#ifdef A
#ifdef B
#endif
#endif
vs.
#if defined(A) && defined(B)
Regards,
Arend
WARNING: multiple messages have this Message-ID (diff)
From: Arend van Spriel <arend.vanspriel-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
To: "Kalle Valo" <kvalo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
"Rafał Miłecki" <rafal-g1n6cQUeyibVItvQsEIGlw@public.gmane.org>
Cc: "Rafał Miłecki" <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
"Franky Lin" <franky.lin-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
"Hante Meuleman"
<hante.meuleman-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
"Chi-Hsien Lin"
<chi-hsien.lin-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org>,
"Wright Feng"
<wright.feng-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org>,
"Pieter-Paul Giesberts"
<pieter-paul.giesberts-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
"James Hughes"
<james.hughes-FnsA7b+Nu9XbIbC87yuRow@public.gmane.org>,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
brcm80211-dev-list.pdl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org,
brcm80211-dev-list-+wT8y+m8/X5BDgjK7y7TUQ@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Linus Lüssing"
<linus.luessing-djzkFPsfvsizQB+pC5nmwQ@public.gmane.org>,
"Felix Fietkau" <nbd-Vt+b4OUoWG0@public.gmane.org>,
bridge-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Subject: Re: [PATCH] brcmfmac: drop Inter-Access Point Protocol packets by default
Date: Wed, 14 Mar 2018 21:55:23 +0100 [thread overview]
Message-ID: <5AA98C3B.2070406@broadcom.com> (raw)
In-Reply-To: <877eqe63kr.fsf-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
On 3/14/2018 5:10 PM, Kalle Valo wrote:
> Rafał Miłecki <rafal-g1n6cQUeyibVItvQsEIGlw@public.gmane.org> writes:
>
>>>> + unsigned char *eth_data = skb_mac_header(skb) + ETH_HLEN;
>>>> +#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
>>>
>>> #ifndef?
>>
>> I followed what is used in the include/linux/etherdevice.h. Is that a
>> good exceuse? Could it be there any some good reason for #if defined()?
>
> Don't know, maybe just a matter of taste? But it would be nice to know
> the background behind #ifdef vs #if defined(), never figured it out why
> two different forms.
Well. In this case you could use either one, but if you have more
conditions #if defined() is bit more efficient:
#ifdef A
#ifdef B
#endif
#endif
vs.
#if defined(A) && defined(B)
Regards,
Arend
next prev parent reply other threads:[~2018-03-14 20:55 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-14 11:01 [PATCH] brcmfmac: drop Inter-Access Point Protocol packets by default Rafał Miłecki
2018-03-14 11:01 ` [Bridge] " Rafał Miłecki
2018-03-14 11:01 ` Rafał Miłecki
2018-03-14 12:58 ` Arend van Spriel
2018-03-14 12:58 ` [Bridge] " Arend van Spriel
2018-03-14 12:58 ` Arend van Spriel
2018-03-14 15:39 ` Rafał Miłecki
2018-03-14 16:58 ` [Bridge] " Rafał Miłecki
2018-03-14 15:39 ` Rafał Miłecki
2018-03-14 15:40 ` Rafał Miłecki
2018-03-14 15:58 ` [Bridge] " Rafał Miłecki
2018-03-14 15:40 ` Rafał Miłecki
2018-03-14 15:57 ` Rafał Miłecki
2018-03-14 20:43 ` [Bridge] " Rafał Miłecki
2018-03-14 15:57 ` Rafał Miłecki
2018-03-14 20:44 ` Arend van Spriel
2018-03-14 20:44 ` [Bridge] " Arend van Spriel
2018-03-14 20:44 ` Arend van Spriel
2018-03-14 14:24 ` Kalle Valo
2018-03-14 14:24 ` [Bridge] " Kalle Valo
2018-03-14 14:24 ` Kalle Valo
2018-03-14 14:44 ` Arend van Spriel
2018-03-14 14:44 ` [Bridge] " Arend van Spriel
2018-03-14 14:44 ` Arend van Spriel
2018-03-14 15:08 ` Kalle Valo
2018-03-14 15:08 ` [Bridge] " Kalle Valo
2018-03-14 15:08 ` Kalle Valo
2018-03-14 15:27 ` [Bridge] " Stephen Hemminger
2018-03-14 15:27 ` Stephen Hemminger
2018-03-14 15:27 ` Stephen Hemminger
2018-03-14 15:28 ` Rafał Miłecki
2018-03-14 17:57 ` [Bridge] " Rafał Miłecki
2018-03-14 15:28 ` Rafał Miłecki
2018-03-14 15:44 ` Rafał Miłecki
2018-03-14 15:45 ` [Bridge] " Rafał Miłecki
2018-03-14 15:44 ` Rafał Miłecki
2018-03-14 16:10 ` Kalle Valo
2018-03-14 16:10 ` [Bridge] " Kalle Valo
2018-03-14 16:10 ` Kalle Valo
2018-03-14 20:55 ` Arend van Spriel [this message]
2018-03-14 20:55 ` [Bridge] " Arend van Spriel
2018-03-14 20:55 ` Arend van Spriel
2018-03-15 9:23 ` Kalle Valo
2018-03-15 9:23 ` [Bridge] " Kalle Valo
2018-03-15 9:23 ` Kalle Valo
2018-03-14 15:08 ` [Bridge] " Stephen Hemminger
2018-03-14 15:08 ` Stephen Hemminger
2018-03-14 15:08 ` Stephen Hemminger
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