netdev - RE: [PATCH net] x86: bpf_jit: support negative offsets

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Message-ID: <063D6719AE5E284EB5DD2968C1650D6D0F6DA58F@AcuExch.aculab.com>
Date:	Tue, 11 Mar 2014 09:59:28 +0000
From:	David Laight <David.Laight@...LAB.COM>
To:	'Alexei Starovoitov' <ast@...mgrid.com>,
	"David S. Miller" <davem@...emloft.net>
CC:	Jan Seiffert <kaffeemonster@...glemail.com>,
	Eric Dumazet <edumazet@...gle.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: RE: [PATCH net] x86: bpf_jit: support negative offsets

From:  Alexei Starovoitov
> This is a single bit patch. Is there a leaderboard of shortest patches? ;)

The shortest patches will be the ones that invert a conditional branch.
Unless the compiler reorders the code they will be 1-bit (on most archs).
Since that is a common error, there will be a few of them.

Now a 1/2bit patch would be a challenge:-)

	David



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