netdev - Re: [PATCH net-next 01/16] sfc: Add permissions to MCDI commands

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Date:	Mon, 18 May 2015 12:21:05 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	sshah@...arflare.com
Cc:	netdev@...r.kernel.org, linux-net-drivers@...arflare.com
Subject: Re: [PATCH net-next 01/16] sfc: Add permissions to MCDI commands

From: Shradha Shah <sshah@...arflare.com>
Date: Mon, 18 May 2015 16:27:00 +0100

> @@ -637,6 +637,9 @@
>   * Read multiple 32byte words from MC memory.
>   */
>  #define MC_CMD_READ32 0x1
> +#undef MC_CMD_0x1_PRIVILEGE_CTG
> +
> +#define MC_CMD_0x1_PRIVILEGE_CTG SRIOV_CTG_ADMIN

Please do not add unnecessary #undef statements like this.

It makes your code harder to read, and in particular harder to
audit for problems.  Because you're making it look like you are
explicitly overriding a definition from somewhere else, so people
have to go grepping around to find out where that is only to find
out that no such place even exists.
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