netdev - Re: [PATCH] bonding: use pre-defined macro in bond_mode

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Message-Id: <20130726.135330.232525167518786234.davem@davemloft.net>
Date:	Fri, 26 Jul 2013 13:53:30 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	joe@...ches.com
Cc:	shhuiw@...il.com, fubar@...ibm.com, andy@...yhouse.net,
	netdev@...r.kernel.org
Subject: Re: [PATCH] bonding: use pre-defined macro in bond_mode_name
 instead of magic number 0

From: Joe Perches <joe@...ches.com>
Date: Wed, 24 Jul 2013 00:10:19 -0700

> Probably be simpler, less confusing, and more normal style
> to use a switch case.
> 
> 	switch (mode) {
> 	case BOND_MODE_ROUNDROBIN:
> 		return "load balancing (round-robin)";
> 	case BOND_MODE_ACTIVEBACKUP:
> 		return "fault-tolerance (active-backup)";
> 	case BOND_MODE_XOR:
> 		return "load balancing (xor)";
> 	case BOND_MODE_BROADCAST;
> 		return "fault-tolerance (broadcast)";
> 	case BOND_MODE_8023AD:
> 		return "IEEE 802.3ad Dynamic link aggregation";
> 	case BOND_MODE_TLB:
> 		return "transmit load balancing";
> 	case BOND_MODE_ALB:
> 		return "adaptive load balancing";
> 	default:
> 		return "unknown";
> 	}

I have to say that I do not prefer this approach.

I have a good idea what the compiler ends up outputting for the above,
and the "indexed table of strings" approach is much less code.
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