netdev - Re: drivers/net/tokenring/smctr.c: logical-bitwise or confusion?

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Message-ID: <993737.45508.qm@web65610.mail.ac4.yahoo.com>
Date:	Sun, 9 Mar 2008 20:09:39 -0400 (EDT)
From:	Paul Gortmaker <p_gortmaker@...oo.com>
To:	Roel Kluin <12o3l@...cali.nl>, jschlst@...ba.org
Cc:	netdev@...r.kernel.org
Subject: Re: drivers/net/tokenring/smctr.c: logical-bitwise or confusion?

--- Roel Kluin <12o3l@...cali.nl> wrote:

> drivers/net/tokenring/smctr.c:3416
> 
> tsv->svv[0] = ((tx_fstatus & 0x0100 >> 6) || IBM_PASS_SOURCE_ADDR);
> 
> shouldn't this be a bit-wise or?
> from drivers/net/tokenring/smctr.h:50:
> 
> #define      IBM_PASS_SOURCE_ADDR    0x01

Probably a safe bet that is what they meant to have. Since
as it stands, gcc will (correctly) optimize that into:

tsv->svv[0]= 1;

which probably isn't particularly useful.

Paul.

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