linux-kernel - Re: full list of unused CONFIGs under drivers/

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Message-ID: <20080805152609.1119f0b1@hskinnemo-gx745.norway.atmel.com>
Date:	Tue, 5 Aug 2008 15:26:09 +0200
From:	Haavard Skinnemoen <haavard.skinnemoen@...el.com>
To:	"Robert P. J. Day" <rpjday@...shcourse.ca>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: full list of unused CONFIGs under drivers/

"Robert P. J. Day" <rpjday@...shcourse.ca> wrote:
> ===== MTD_NAND_ATMEL_ECC_SOFT
> drivers/mtd/nand/Kconfig:313:config MTD_NAND_ATMEL_ECC_SOFT

It may be unreferenced, but it behaves as expected. It's part of a set
of three mutually exclusive choices, so after checking for the two
others, there's no point checking for the last one.

Of course, we could apply the patch below ;-)

Haavard

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 3387e0d..d5775a9 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -47,6 +47,10 @@
 #define no_ecc		0
 #endif

+#ifdef CONFIG_MTD_NAND_ATMEL_ECC_SOFT
+/* Avoid incessant nagging */
+#endif
+
 /* Register access macros */
 #define ecc_readl(add, reg)				\
 	__raw_readl(add + ATMEL_ECC_##reg)
--
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