linux-kernel - Re: [PATCH] gadget: make USB_CONFIGFS_MASS

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Date:	Mon, 9 Dec 2013 13:21:57 -0600
From:	Felipe Balbi <balbi@...com>
To:	Randy Dunlap <rdunlap@...radead.org>
CC:	USB list <linux-usb@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Andrzej Pietrasiewicz <andrzej.p@...sung.com>,
	Felipe Balbi <balbi@...com>
Subject: Re: [PATCH] gadget: make USB_CONFIGFS_MASS_STORAGE depend on BLOCK

On Mon, Dec 09, 2013 at 11:18:25AM -0800, Randy Dunlap wrote:
> From: Randy Dunlap <rdunlap@...radead.org>
> 
> Make USB_CONFIGFS_MASS_STORAGE depend on BLOCK just like the other
> gadget MASS_STORAGE options do.  This fixes the following build errors
> that occur when BLOCK is not enabled:
> 
> drivers/usb/gadget/storage_common.c: In function 'fsg_lun_open':
> drivers/usb/gadget/storage_common.c:241:3: error: implicit declaration of function 'bdev_logical_block_size' [-Werror=implicit-function-declaration]
> drivers/usb/gadget/storage_common.c:242:3: error: implicit declaration of function 'blksize_bits' [-Werror=implicit-function-declaration]
> 
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Cc: Andrzej Pietrasiewicz <andrzej.p@...sung.com>
> Cc: Felipe Balbi <balbi@...com>

Already have a patch for that

commit bc912b0d237c1d376214616ae0c9d12b7d542ab4
Author: Andrzej Pietrasiewicz <andrzej.p@...sung.com>
Date:   Mon Nov 4 13:46:17 2013 +0100

    usb: gadget: f_mass_storage: fix mass storage dependency
    
    Legacy gadgets supporting mass storage (g_mass_storage, g_acm_ms, g_multi)
    all depend on BLOCK.
    
    Make the standalone compilation of f_mass_storage (without any legacy
    gadget) dependent no BLOCK, too.
    
    Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@...sung.com>
    Signed-off-by: Kyungmin Park <kyungmin.park@...sung.com>
    Signed-off-by: Felipe Balbi <balbi@...com>

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index a91e642..f66d96a 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -682,6 +682,7 @@ config USB_CONFIGFS_PHONET
 config USB_CONFIGFS_MASS_STORAGE
 	boolean "Mass storage"
 	depends on USB_CONFIGFS
+	depends on BLOCK
 	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.

-- 
balbi

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