* [PATCH] mm: fix build failure with xtensa
@ 2020-11-10 22:01 Sudip Mukherjee
2020-11-10 22:08 ` Andrew Morton
0 siblings, 1 reply; 2+ messages in thread
From: Sudip Mukherjee @ 2020-11-10 22:01 UTC (permalink / raw)
To: Andrew Morton, Stephen Rothwell
Cc: linux-kernel, linux-mm, Chris Zankel, Max Filippov, linux-xtensa,
Sudip Mukherjee
If CONFIG_ZSMALLOC is enabled with xtensa then the build fails with:
mm/zsmalloc.c:43:10: fatal error: asm/sparsemem.h: No such file or directory
Disable CONFIG_ZSMALLOC for xtensa as xtensa arch has not defined
sparsemem.h.
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
---
Build failed with next-20201110.
Build log at https://travis-ci.org/github/sudipm-mukherjee/linux-next/jobs/742793855#L13375
mm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/Kconfig b/mm/Kconfig
index e8587f6bf29a..5b9426ba5e6a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -698,7 +698,7 @@ config Z3FOLD
config ZSMALLOC
tristate "Memory allocator for compressed pages"
- depends on MMU
+ depends on (MMU && !XTENSA)
help
zsmalloc is a slab-based memory allocator designed to store
compressed RAM pages. zsmalloc uses virtual memory mapping
--
2.11.0
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH] mm: fix build failure with xtensa
2020-11-10 22:01 [PATCH] mm: fix build failure with xtensa Sudip Mukherjee
@ 2020-11-10 22:08 ` Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2020-11-10 22:08 UTC (permalink / raw)
To: Sudip Mukherjee
Cc: Stephen Rothwell, linux-kernel, linux-mm, Chris Zankel,
Max Filippov, linux-xtensa, ngupta, sergey.senozhatsky.work,
sjenning, gregkh, arnd, Stefan Agner, Minchan Kim
On Tue, 10 Nov 2020 22:01:51 +0000 Sudip Mukherjee <sudipm.mukherjee@gmail.com> wrote:
> If CONFIG_ZSMALLOC is enabled with xtensa then the build fails with:
> mm/zsmalloc.c:43:10: fatal error: asm/sparsemem.h: No such file or directory
>
> Disable CONFIG_ZSMALLOC for xtensa as xtensa arch has not defined
> sparsemem.h.
>
> ...
>
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -698,7 +698,7 @@ config Z3FOLD
>
> config ZSMALLOC
> tristate "Memory allocator for compressed pages"
> - depends on MMU
> + depends on (MMU && !XTENSA)
> help
> zsmalloc is a slab-based memory allocator designed to store
> compressed RAM pages. zsmalloc uses virtual memory mapping
Thanks. I believe that Stefan is working on a more general solution
over in
https://lkml.kernel.org/r/bdfa44bf1c570b05d6c70898e2bbb0acf234ecdf.1604762181.git.stefan@agner.ch
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