linux-kernel - Re: [PATCH v4][mmc/host]:Blackfin SD Host Controller Driver

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Date:	Wed, 25 Nov 2009 17:25:20 -0500
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	cliffcai.sh@...il.com, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org, cliff.cai@...log.com,
	Bryan Wu <cooloney@...nel.org>
Subject: Re: [PATCH v4][mmc/host]:Blackfin SD Host Controller Driver

On Wed, Nov 25, 2009 at 17:04, Andrew Morton wrote:
> On Wed, 25 Nov 2009 23:19:50 +0800 cliffcai.sh wrote:
>> +struct dma_desc_array {
>> +     unsigned long   start_addr;
>> +     unsigned short  cfg;
>> +     unsigned short  x_count;
>> +     short           x_modify;
>> +} __attribute__((packed));
>
> __packed is preferred.

we should move this into the Blackfin dma.h at any rate

>> +static void sdh_start_cmd(struct sdh_host *host, struct mmc_command *cmd)
>> +{
>> +     unsigned int sdh_cmd;
>> +     unsigned int stat_mask;
>> +
>> +     dev_dbg(mmc_dev(host->mmc), "%s enter cmd: 0x%p\n", __func__, cmd);
>> +     WARN_ON(host->cmd != NULL);
>> +     host->cmd = cmd;
>> +
>> +     sdh_cmd = 0;
>> +     stat_mask = 0;
>> +
>> +     sdh_cmd |= cmd->opcode;
>> +
>> +     if (cmd->flags & MMC_RSP_PRESENT) {
>> +             sdh_cmd |= CMD_RSP;
>> +             stat_mask |= CMD_RESP_END;
>> +     } else
>> +             stat_mask |= CMD_SENT;
>
> Arguably wrong from a coding-style POV and looks weird IMO.  Adds a bit
> of risk that subsequent coders will think they're writing in python adn
> will add bugs.

i dont really get what you're referring to here.  the code in question
looks ifne to me, and i dont see anything "python-esque" about it

> Fixes:
>
> -       } else
> +       } else }

guessing you actually meant '{' there
-mike
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