linux-kernel - Re: why does x86 "make defconfig" build a single, lonely module?

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Date:	Sun, 13 May 2007 19:26:31 +0100
From:	Simon Arlott <simon@...e.lp0.eu>
To:	James Bottomley <James.Bottomley@...elEye.com>
CC:	"Robert P. J. Day" <rpjday@...dspring.com>,
	Dave Jones <davej@...hat.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-scsi@...r.kernel.org
Subject: Re: why does x86 "make defconfig" build a single, lonely module?

On 13/05/07 18:48, James Bottomley wrote:
> On Sun, 2007-05-13 at 18:42 +0100, Simon Arlott wrote:
>>> If you set CONFIG_MODULE=y and build SCSI we assume you could have a
>>> SCSI driver module at some point, which would necessitate the wait scan
>>> module.
>> This should be implemented like "Library routines" and only added if such 
>> a SCSI driver module is actually selected. Why can't it at least be a 
>> visible option in the menu? (Although even then it looks like it's 
>> impossible to disable).
> 
> There's out of tree modules to consider.

Ok, I propose we make dozens of modules default 'm' in case an out of 
tree module requires it.

SCSI_SCAN_ASYNC ("Asynchronous SCSI scanning"): "You can load the 
scsi_wait_scan module to ensure that all scans have completed."

It looks like SCSI_WAIT_SCAN is pointless unless SCSI_SCAN_ASYNC 
is selected - so it should depend on it:

---
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index e62d23f..0f6c370 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -244,7 +244,7 @@ config SCSI_SCAN_ASYNC
 config SCSI_WAIT_SCAN
 	tristate
 	default m
-	depends on SCSI
+	depends on SCSI_SCAN_ASYNC
 	depends on MODULES
 
 menu "SCSI Transports"


-- 
Simon Arlott
-
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