linux-kernel - Re: [PATCH 3/3] MEMSTICK: Add driver for Ricoh R5C592 Card reader.

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Date:	Thu, 05 Aug 2010 18:14:06 -0700
From:	Joe Perches <joe@...ches.com>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	Alex Dubov <oakad@...oo.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] MEMSTICK: Add driver for Ricoh R5C592 Card reader.

On Thu, 2010-08-05 at 17:25 +0300, Maxim Levitsky wrote:
> Signed-off-by: Maxim Levitsky <maximlevitsky@...il.com>

Trivial comments:

> ---
>  MAINTAINERS                    |    6 +
> +RICOH R5C592 MEMORYSTICK DRIVER
> +M:	Maxim Levitsky <maximlevitsky@...il.com>
> +S:	Maintained
> +F:	drivers/memstick/host/r592.c
> +F:	drivers/memstick/host/r592.h

Patterns in maintainers can use wildcards

F:	drivers/memstick/host/r592*

> --- /dev/null
> +++ b/drivers/memstick/host/r592.c
> @@ -0,0 +1,889 @@
[]
> +static char *tpc_names[] = {

const ?

> +	"MS_TPC_READ_MG_STATUS",
> +	"MS_TPC_READ_LONG_DATA",

[]

> +#define dbg(format, ...) \
> +	if (debug) \
> +		printk(KERN_DEBUG DRV_NAME ": " format "\n", ## __VA_ARGS__)
> +
> +#define dbg_verbose(format, ...) \
> +	if (debug > 1) \
> +		printk(KERN_DEBUG DRV_NAME ": " format "\n", ## __VA_ARGS__)
> +
> +#define dbg_reg(format, ...) \
> +	if (debug > 2) \
> +		printk(KERN_DEBUG DRV_NAME ": " format "\n", ## __VA_ARGS__)
> +

These style macros should use do { if (test) print(); } while (9)
so they could be used without problems in if/else blocks.
 
Maybe it'd be better to have and use 1 macro with a level passed:

#define dbg(level, format, ...)						\
do {									\
	if (debug > level)						\
		printk(KERN_DEBUG pr_fmt(format), ##__VA_ARGS__);	\
} while (0)

> +#define message(format, ...) \
> +	printk(KERN_INFO DRV_NAME ": " format "\n", ## __VA_ARGS__)

Why not just use pr_info?


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