linux-kernel - [PATCH] [media] sms: Remove CONFIG

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1397663263.28548.13.camel@x220>
Date:	Wed, 16 Apr 2014 17:47:43 +0200
From:	Paul Bolle <pebolle@...cali.nl>
To:	Mauro Carvalho Chehab <m.chehab@...sung.com>
Cc:	Martin Walch <walch.martin@....de>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] [media] sms: Remove CONFIG_ prefix from Kconfig symbols

Remove the CONFIG_ prefix from two Kconfig symbols in a dependency for
SMS_SIANO_DEBUGFS. This prefix is invalid inside Kconfig files.

Note that the current (common sense) dependency on SMS_USB_DRV and
SMS_SDIO_DRV being equal ensures that SMS_SIANO_DEBUGFS will not
violate its constraints. These constraint are that:
- it should only be built if SMS_USB_DRV is set;
- it can't be builtin if USB support is modular.

So drop the dependency on SMS_USB_DRV, as it is unneeded.

Fixes: 6c84b214284e ("[media] sms: fix randconfig building error")
Reported-by: Martin Walch <walch.martin@....de>
Signed-off-by: Paul Bolle <pebolle@...cali.nl>
---
This is not runtime tested, as I don't have the hardware.

A matrix of the three cases in which this symbol can be set, to aid
review and to see whether I actually understood the constraints:

USB  SMS_USB_DRV  SMS_SDIO_DRV  SMS_SIANO_MDTV  SMS_SIANO_DEBUGFS
m    m            m             m               y 
y    m            m             m               y 
y    y            y             y               y 

By the way, I found myself staring at the entries in this file for quite
some time. Perhaps things would have been easier to understand if
SMS_USB_DRV and SMS_SDIO_DRV both selected SMS_SIANO_MDTV. But I didn't
dare to test that idea.

 drivers/media/common/siano/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/common/siano/Kconfig b/drivers/media/common/siano/Kconfig
index f953d33ee151..4bfbd5f463d1 100644
--- a/drivers/media/common/siano/Kconfig
+++ b/drivers/media/common/siano/Kconfig
@@ -22,8 +22,7 @@ config SMS_SIANO_DEBUGFS
 	bool "Enable debugfs for smsdvb"
 	depends on SMS_SIANO_MDTV
 	depends on DEBUG_FS
-	depends on SMS_USB_DRV
-	depends on CONFIG_SMS_USB_DRV = CONFIG_SMS_SDIO_DRV
+	depends on SMS_USB_DRV = SMS_SDIO_DRV
 
 	---help---
 	  Choose Y to enable visualizing a dump of the frontend
-- 
1.9.0

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/