From: David Laight <David.Laight@ACULAB.COM>
To: 'Eric Dumazet' <eric.dumazet@gmail.com>,
Leonard Crestez <cdleonard@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
David Ahern <dsahern@kernel.org>
Cc: Dmitry Safonov <0x7f454c46@gmail.com>,
Kuniyuki Iwashima <kuniyu@amazon.co.jp>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
"Jakub Kicinski" <kuba@kernel.org>,
Neal Cardwell <ncardwell@google.com>,
"Yuchung Cheng" <ycheng@google.com>,
Enke Chen <enchen@paloaltonetworks.com>,
Wei Wang <weiwan@google.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH] tcp: Use BIT() for OPTION_* constants
Date: Thu, 4 Nov 2021 09:17:07 +0000 [thread overview]
Message-ID: <0b48f1ae32ba49f38dcfe11f912c4ace@AcuMS.aculab.com> (raw)
In-Reply-To: <e869d690-939a-a5a5-1a8c-fe4b550b69ab@gmail.com>
From: Eric Dumazet
> Sent: 03 November 2021 22:50
>
> On 11/3/21 3:17 PM, Leonard Crestez wrote:
> > Extending these flags using the existing (1 << x) pattern triggers
> > complaints from checkpatch. Instead of ignoring checkpatch modify the
> > existing values to use BIT(x) style in a separate commit.
> >
> > Signed-off-by: Leonard Crestez <cdleonard@gmail.com>
> >
>
> Yes, I guess checkpatch does not know that we currently use at most 16 bits :)
>
> u16 options = opts->options;
>
> Anyway, this seems fine.
Doesn't BIT() have a nasty habit of generating 64bit constants
that just cause a different set of issues when inverted?
It may be safe here - but who knows.
David
-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)
next prev parent reply other threads:[~2021-11-04 9:17 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-03 22:17 Leonard Crestez
2021-11-03 22:49 ` Eric Dumazet
2021-11-04 9:17 ` David Laight [this message]
2021-11-04 16:38 ` Eric Dumazet
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