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From: Johannes Berg <johannes@sipsolutions.net>
To: Arend van Spriel <arend.vanspriel@broadcom.com>,
	"Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: backports@vger.kernel.org
Subject: Re: [PATCH 3/3] backports: empty define for __ro_after_init
Date: Sat, 12 Nov 2016 22:07:22 +0100	[thread overview]
Message-ID: <1478984842.4226.1.camel@sipsolutions.net> (raw)
In-Reply-To: <1478981923-12298-3-git-send-email-arend.vanspriel@broadcom.com> (sfid-20161112_212539_146779_9220B565)

On Sat, 2016-11-12 at 20:18 +0000, Arend van Spriel wrote:
> nl80211 now uses section qualifier __ro_after_init. However, this
> is not available in kernels before v4.6. Neither is the section
> itself hence adding an empty define in backports.

> +#if (LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0))
> +#define __ro_after_init
> +#endif

Due to how __ro_after_init works, it *has* to be a macro originally, so
you could just ifndef on itself:

#ifndef __ro_after_init
#define __ro_after_init
#endif

and be slightly more compatible in case somebody ever backports it.

Don't think it really matters much, but why not.

johannes
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  reply	other threads:[~2016-11-12 21:07 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-12 20:18 [PATCH 1/3] backports: add backport for nla_memdup() Arend van Spriel
2016-11-12 20:18 ` [PATCH 2/3] backports: add backport for genl_family_attrbuf() function Arend van Spriel
2016-11-12 20:18 ` [PATCH 3/3] backports: empty define for __ro_after_init Arend van Spriel
2016-11-12 21:07   ` Johannes Berg [this message]
2016-11-14 18:59     ` Luis R. Rodriguez
2016-11-14 19:26       ` Arend Van Spriel

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