* [PATCH] mm: export "high_memory" symbol on !MMU
@ 2015-01-28 14:43 ` Arnd Bergmann
0 siblings, 0 replies; 6+ messages in thread
From: Arnd Bergmann @ 2015-01-28 14:43 UTC (permalink / raw)
To: Andrew Morton; +Cc: kirill.shutemov, linux-mm, gerg, linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mm: export "high_memory" symbol on !MMU
@ 2015-01-28 14:43 ` Arnd Bergmann
0 siblings, 0 replies; 6+ messages in thread
From: Arnd Bergmann @ 2015-01-28 14:43 UTC (permalink / raw)
To: linux-arm-kernel
>From f391eb37fafc8a22d7fd9574b8d220f0d90a91d0 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 25 Aug 2014 16:24:41 +0200
Subject: [PATCH] mm: export "high_memory" symbol on !MMU
The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels,
but only one of them is exported, which leads to module build errors
in drivers that work fine built-in:
ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
ERROR: "high_memory" [crypto/cts.ko] undefined!
This exports the symbol to get these to work on NOMMU as well.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/mm/nommu.c b/mm/nommu.c
index e9228cbe46de..7bdeb281ad0e 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -59,6 +59,7 @@
#endif
void *high_memory;
+EXPORT_SYMBOL(high_memory);
struct page *mem_map;
unsigned long max_mapnr;
unsigned long highest_memmap_pfn;
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] mm: export "high_memory" symbol on !MMU
2015-01-28 14:43 ` Arnd Bergmann
@ 2015-01-29 1:15 ` Greg Ungerer
-1 siblings, 0 replies; 6+ messages in thread
From: Greg Ungerer @ 2015-01-29 1:15 UTC (permalink / raw)
To: Arnd Bergmann, Andrew Morton; +Cc: kirill.shutemov, linux-mm, linux-arm-kernel
On 29/01/15 00:43, Arnd Bergmann wrote:
>>From f391eb37fafc8a22d7fd9574b8d220f0d90a91d0 Mon Sep 17 00:00:00 2001
> From: Arnd Bergmann <arnd@arndb.de>
> Date: Mon, 25 Aug 2014 16:24:41 +0200
> Subject: [PATCH] mm: export "high_memory" symbol on !MMU
>
> The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels,
> but only one of them is exported, which leads to module build errors
> in drivers that work fine built-in:
>
> ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
> ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
> ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
> ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
> ERROR: "high_memory" [crypto/cts.ko] undefined!
>
> This exports the symbol to get these to work on NOMMU as well.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Here is an ack if you want one:
Acked-by: Greg Ungerer <gerg@uclinux.org>
Regards
Greg
> diff --git a/mm/nommu.c b/mm/nommu.c
> index e9228cbe46de..7bdeb281ad0e 100644
> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -59,6 +59,7 @@
> #endif
>
> void *high_memory;
> +EXPORT_SYMBOL(high_memory);
> struct page *mem_map;
> unsigned long max_mapnr;
> unsigned long highest_memmap_pfn;
>
>
--
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mm: export "high_memory" symbol on !MMU
@ 2015-01-29 1:15 ` Greg Ungerer
0 siblings, 0 replies; 6+ messages in thread
From: Greg Ungerer @ 2015-01-29 1:15 UTC (permalink / raw)
To: linux-arm-kernel
On 29/01/15 00:43, Arnd Bergmann wrote:
>>From f391eb37fafc8a22d7fd9574b8d220f0d90a91d0 Mon Sep 17 00:00:00 2001
> From: Arnd Bergmann <arnd@arndb.de>
> Date: Mon, 25 Aug 2014 16:24:41 +0200
> Subject: [PATCH] mm: export "high_memory" symbol on !MMU
>
> The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels,
> but only one of them is exported, which leads to module build errors
> in drivers that work fine built-in:
>
> ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
> ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
> ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
> ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
> ERROR: "high_memory" [crypto/cts.ko] undefined!
>
> This exports the symbol to get these to work on NOMMU as well.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Here is an ack if you want one:
Acked-by: Greg Ungerer <gerg@uclinux.org>
Regards
Greg
> diff --git a/mm/nommu.c b/mm/nommu.c
> index e9228cbe46de..7bdeb281ad0e 100644
> --- a/mm/nommu.c
> +++ b/mm/nommu.c
> @@ -59,6 +59,7 @@
> #endif
>
> void *high_memory;
> +EXPORT_SYMBOL(high_memory);
> struct page *mem_map;
> unsigned long max_mapnr;
> unsigned long highest_memmap_pfn;
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] mm: export "high_memory" symbol on !MMU
2015-01-28 14:43 ` Arnd Bergmann
@ 2015-02-02 17:51 ` David Rientjes
-1 siblings, 0 replies; 6+ messages in thread
From: David Rientjes @ 2015-02-02 17:51 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Andrew Morton, kirill.shutemov, linux-mm, gerg, linux-arm-kernel
On Wed, 28 Jan 2015, Arnd Bergmann wrote:
> The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels,
> but only one of them is exported, which leads to module build errors
> in drivers that work fine built-in:
>
> ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
> ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
> ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
> ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
> ERROR: "high_memory" [crypto/cts.ko] undefined!
>
> This exports the symbol to get these to work on NOMMU as well.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Rientjes <rientjes@google.com>
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] mm: export "high_memory" symbol on !MMU
@ 2015-02-02 17:51 ` David Rientjes
0 siblings, 0 replies; 6+ messages in thread
From: David Rientjes @ 2015-02-02 17:51 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, 28 Jan 2015, Arnd Bergmann wrote:
> The symbol 'high_memory' is provided on both MMU- and NOMMU-kernels,
> but only one of them is exported, which leads to module build errors
> in drivers that work fine built-in:
>
> ERROR: "high_memory" [drivers/net/virtio_net.ko] undefined!
> ERROR: "high_memory" [drivers/net/ppp/ppp_mppe.ko] undefined!
> ERROR: "high_memory" [drivers/mtd/nand/nand.ko] undefined!
> ERROR: "high_memory" [crypto/tcrypt.ko] undefined!
> ERROR: "high_memory" [crypto/cts.ko] undefined!
>
> This exports the symbol to get these to work on NOMMU as well.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David Rientjes <rientjes@google.com>
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-02-02 17:51 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-01-28 14:43 [PATCH] mm: export "high_memory" symbol on !MMU Arnd Bergmann
2015-01-28 14:43 ` Arnd Bergmann
2015-01-29 1:15 ` Greg Ungerer
2015-01-29 1:15 ` Greg Ungerer
2015-02-02 17:51 ` David Rientjes
2015-02-02 17:51 ` David Rientjes
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