* [PATCH,RFC] fix section mismatch warning in lib/swiotlb.c
@ 2007-02-26 18:38 Sam Ravnborg
2007-02-27 20:24 ` Andrew Morton
0 siblings, 1 reply; 2+ messages in thread
From: Sam Ravnborg @ 2007-02-26 18:38 UTC (permalink / raw)
To: Andrew Morton, LKML
kbuild spits outs following warning on a
defconfig x86_64 build:
WARNING: swiotlb.o - Section mismatch: reference to .init.text:swiotlb_init from __ksymtab between '__ksymtab_swiotlb_init' (at offset 0xa0) and '__ksymtab_swiotlb_free_coherent'
This warning happens because the function
swiotlb_init is marked __init and EXPORT_SYMBOL().
A 'git grep swiotlb_init' showed no users in drivers/
so maybe the EXPORT_SYMBOL can be deleted which would cure the warning?
I took the pragmatic approach and made it non-__init.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 623a68a..3133495 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -160,7 +160,7 @@ __setup("swiotlb=", setup_io_tlb_npages);
* Statically reserve bounce buffer space and initialize bounce buffer data
* structures for the software IO TLB used to implement the DMA API.
*/
-void __init
+void
swiotlb_init_with_default_size(size_t default_size)
{
unsigned long i, bytes;
@@ -211,7 +211,7 @@ swiotlb_init_with_default_size(size_t default_size)
#define __swiotlb_init_with_default_size swiotlb_init_with_default_size
#endif
-void __init
+void
swiotlb_init(void)
{
__swiotlb_init_with_default_size(64 * (1<<20)); /* default to 64MB */
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH,RFC] fix section mismatch warning in lib/swiotlb.c
2007-02-26 18:38 [PATCH,RFC] fix section mismatch warning in lib/swiotlb.c Sam Ravnborg
@ 2007-02-27 20:24 ` Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2007-02-27 20:24 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: linux-kernel
> On Mon, 26 Feb 2007 19:38:00 +0100 Sam Ravnborg <sam@ravnborg.org> wrote:
> kbuild spits outs following warning on a
> defconfig x86_64 build:
> WARNING: swiotlb.o - Section mismatch: reference to .init.text:swiotlb_init from __ksymtab between '__ksymtab_swiotlb_init' (at offset 0xa0) and '__ksymtab_swiotlb_free_coherent'
>
> This warning happens because the function
> swiotlb_init is marked __init and EXPORT_SYMBOL().
> A 'git grep swiotlb_init' showed no users in drivers/
> so maybe the EXPORT_SYMBOL can be deleted which would cure the warning?
>
> I took the pragmatic approach and made it non-__init.
>
> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
> ---
> diff --git a/lib/swiotlb.c b/lib/swiotlb.c
> index 623a68a..3133495 100644
> --- a/lib/swiotlb.c
> +++ b/lib/swiotlb.c
> @@ -160,7 +160,7 @@ __setup("swiotlb=", setup_io_tlb_npages);
> * Statically reserve bounce buffer space and initialize bounce buffer data
> * structures for the software IO TLB used to implement the DMA API.
> */
> -void __init
> +void
> swiotlb_init_with_default_size(size_t default_size)
> {
> unsigned long i, bytes;
> @@ -211,7 +211,7 @@ swiotlb_init_with_default_size(size_t default_size)
> #define __swiotlb_init_with_default_size swiotlb_init_with_default_size
> #endif
>
> -void __init
> +void
> swiotlb_init(void)
> {
> __swiotlb_init_with_default_size(64 * (1<<20)); /* default to 64MB */
eh. If there's a module anywhere which calls swiotlb_init() then I suspect
it's one which deserves breaking ;)
I'll remove the export.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2007-02-26 18:38 [PATCH,RFC] fix section mismatch warning in lib/swiotlb.c Sam Ravnborg
2007-02-27 20:24 ` Andrew Morton
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