linux-kernel - Re: [PATCH 0/8] mtd: nand: Support for new DT NAND driver

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Date:	Wed, 20 Aug 2014 07:48:13 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Brian Norris <computersforpeace@...il.com>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel@...inux.com, pekon@...-sem.com,
	linux-mtd@...ts.infradead.org
Subject: Re: [PATCH 0/8] mtd: nand: Support for new DT NAND driver

On Tue, 19 Aug 2014, Brian Norris wrote:

> On Mon, Aug 18, 2014 at 09:39:53AM +0100, Lee Jones wrote:
> > On Thu, 14 Aug 2014, Brian Norris wrote:
> > > drivers/mtd/nand/stm_nand_bch.c: In function 'bch_calc_timing_registers':
> > > drivers/mtd/nand/stm_nand_bch.c:1022:6: warning: variable 'ren_half_off' set but not used [-Wunused-but-set-variable]
> > > drivers/mtd/nand/stm_nand_bch.c:1021:6: warning: variable 'ren_half_on' set but not used [-Wunused-but-set-variable]
> > 
> > This I have never seen.  I guess -Wunused-but-set-variable is normally
> > off.  This issue has been present since the beginning of this endeavour
> > and exists in the original (internal) code.
> 
> BTW, you can get extra warnings by building with the W=[123] option to
> the Makefile (e.g., 'make W=1').
> 
> $ make help
> [...]
>   make W=n   [targets] Enable extra gcc checks, n=1,2,3 where
> 		1: warnings which may be relevant and do not occur too often
> 		2: warnings which occur quite often but may still be relevant
> 		3: more obscure warnings, can most likely be ignored
> 		Multiple levels can be combined with W=12 or W=123

Already taken care of.

I will reply in more detail to your other (build warnings) email.

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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