* what is the purpose of "CONFIG_DMA_IS_DMA32"?
@ 2006-11-27 18:25 Robert P. J. Day
2006-11-27 21:20 ` Andi Kleen
2006-11-27 21:32 ` Christoph Lameter
0 siblings, 2 replies; 4+ messages in thread
From: Robert P. J. Day @ 2006-11-27 18:25 UTC (permalink / raw)
To: Linux kernel mailing list
perhaps a silly question, but:
$ grep -r "DMA_IS_DMA32" *
arch/ia64/defconfig:CONFIG_DMA_IS_DMA32=y
arch/ia64/configs/sim_defconfig:CONFIG_DMA_IS_DMA32=y
arch/ia64/configs/zx1_defconfig:CONFIG_DMA_IS_DMA32=y
arch/ia64/configs/tiger_defconfig:CONFIG_DMA_IS_DMA32=y
arch/ia64/configs/bigsur_defconfig:CONFIG_DMA_IS_DMA32=y
arch/ia64/configs/gensparse_defconfig:CONFIG_DMA_IS_DMA32=y
$
what is the purpose of a configuration symbol that is set but never
involved in a conditional check?
i'm guessing that used to be a config setting in the ia64/Kconfig
file that has since vanished.
rday
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: what is the purpose of "CONFIG_DMA_IS_DMA32"?
2006-11-27 18:25 what is the purpose of "CONFIG_DMA_IS_DMA32"? Robert P. J. Day
@ 2006-11-27 21:20 ` Andi Kleen
2006-11-27 21:32 ` Christoph Lameter
1 sibling, 0 replies; 4+ messages in thread
From: Andi Kleen @ 2006-11-27 21:20 UTC (permalink / raw)
To: Robert P. J. Day; +Cc: linux-kernel
"Robert P. J. Day" <rpjday@mindspring.com> writes:
> perhaps a silly question, but:
I added it originally, but it got obsoleted in some cleanups.
It originally meant that GFP_DMA is the same as GFP_DMA32.
Can be removed from ia64 i guess.
-Andi
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: what is the purpose of "CONFIG_DMA_IS_DMA32"?
2006-11-27 18:25 what is the purpose of "CONFIG_DMA_IS_DMA32"? Robert P. J. Day
@ 2006-11-27 21:32 ` Christoph Lameter
2006-11-27 21:32 ` Christoph Lameter
1 sibling, 0 replies; 4+ messages in thread
From: Christoph Lameter @ 2006-11-27 21:32 UTC (permalink / raw)
To: Robert P. J. Day; +Cc: Linux kernel mailing list, linux-ia64
On Mon, 27 Nov 2006, Robert P. J. Day wrote:
>
> perhaps a silly question, but:
>
> $ grep -r "DMA_IS_DMA32" *
> arch/ia64/defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/sim_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/zx1_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/tiger_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/bigsur_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/gensparse_defconfig:CONFIG_DMA_IS_DMA32=y
> $
>
> what is the purpose of a configuration symbol that is set but never
> involved in a conditional check?
>
> i'm guessing that used to be a config setting in the ia64/Kconfig
> file that has since vanished.
Correct that config setting was eliminated in the 2.6.19 development
cycle. Refreshing the config files would be advisable.
5A
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: what is the purpose of "CONFIG_DMA_IS_DMA32"?
@ 2006-11-27 21:32 ` Christoph Lameter
0 siblings, 0 replies; 4+ messages in thread
From: Christoph Lameter @ 2006-11-27 21:32 UTC (permalink / raw)
To: Robert P. J. Day; +Cc: Linux kernel mailing list, linux-ia64
On Mon, 27 Nov 2006, Robert P. J. Day wrote:
>
> perhaps a silly question, but:
>
> $ grep -r "DMA_IS_DMA32" *
> arch/ia64/defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/sim_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/zx1_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/tiger_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/bigsur_defconfig:CONFIG_DMA_IS_DMA32=y
> arch/ia64/configs/gensparse_defconfig:CONFIG_DMA_IS_DMA32=y
> $
>
> what is the purpose of a configuration symbol that is set but never
> involved in a conditional check?
>
> i'm guessing that used to be a config setting in the ia64/Kconfig
> file that has since vanished.
Correct that config setting was eliminated in the 2.6.19 development
cycle. Refreshing the config files would be advisable.
5A
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2006-11-27 21:32 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2006-11-27 18:25 what is the purpose of "CONFIG_DMA_IS_DMA32"? Robert P. J. Day
2006-11-27 21:20 ` Andi Kleen
2006-11-27 21:32 ` Christoph Lameter
2006-11-27 21:32 ` Christoph Lameter
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