[2.5 patch] let MTD_UCLINUX depend on !MMU

[2.5 patch] let MTD_UCLINUX depend on !MMU

[Adrian Bunk]

Trying to compile a kernel with MTD_UCLINUX enabled for a computer with
a MMU fails at the final linking because the variable _ebss seems to be
not defined on such machines (it's only defined on m68knommu, h8300 and 
v850).

The following patch (still applies with a few lines offset against 
2.5.69-bk4) tries to correct this issue by letting MTD_UCLINUX depend on 
!MMU.


--- linux-2.5.65-full/drivers/mtd/maps/Kconfig.old	2003-03-20 16:56:25.000000000 +0100
+++ linux-2.5.65-full/drivers/mtd/maps/Kconfig	2003-03-20 16:56:45.000000000 +0100
@@ -348,7 +348,7 @@
 
 config MTD_UCLINUX
 	tristate "Generic uClinux RAM/ROM filesystem support"
-	depends on MTD_PARTITIONS
+	depends on MTD_PARTITIONS && !MMU
 	help
 	  Map driver to support image based filesystems for uClinux.
 


cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Re: [2.5 patch] let MTD_UCLINUX depend on !MMU

[Jörn Engel]

Pruned the CC: list a bit.

On Sun, 11 May 2003 12:06:50 +0200, Adrian Bunk wrote:
> 
> Trying to compile a kernel with MTD_UCLINUX enabled for a computer with
> a MMU fails at the final linking because the variable _ebss seems to be
> not defined on such machines (it's only defined on m68knommu, h8300 and 
> v850).
> 
> The following patch (still applies with a few lines offset against 
> 2.5.69-bk4) tries to correct this issue by letting MTD_UCLINUX depend on 
> !MMU.
> 
> 
> --- linux-2.5.65-full/drivers/mtd/maps/Kconfig.old	2003-03-20 16:56:25.000000000 +0100
> +++ linux-2.5.65-full/drivers/mtd/maps/Kconfig	2003-03-20 16:56:45.000000000 +0100
> @@ -348,7 +348,7 @@
>  
>  config MTD_UCLINUX
>  	tristate "Generic uClinux RAM/ROM filesystem support"
> -	depends on MTD_PARTITIONS
> +	depends on MTD_PARTITIONS && !MMU
>  	help
>  	  Map driver to support image based filesystems for uClinux.

Usually, I committed such random fixes to CVS, but my time is getting
more constrained.

David, what would create the least work for you. To have such small
patches both in 2.5 and mtd cvs? Just curious, so I don't waste my
time on something that doesn't really help you.

Jörn

-- 
Anything that can go wrong, will.
-- Finagle's Law