On 29/03/17 22:10, Arnd Bergmann wrote:
When COMEDI_NI_LABPC is built-in and COMEDI_NI_LABPC_ISA is a loadable
module, thhe ISA DMA code is not reachable by the common module, causing
a link error:
drivers/staging/built-in.o: In function `labpc_interrupt':
ni_labpc_common.c:(.text+0x1d178): undefined reference to `labpc_handle_dma_status'
ni_labpc_common.c:(.text+0x1d1cb): undefined reference to `labpc_drain_dma'
drivers/staging/built-in.o: In function `labpc_ai_cmd':
ni_labpc_common.c:(.text+0x1d8ad): undefined reference to `labpc_setup_dma'
This changes the definition of COMEDI_NI_LABPC_ISADMA so that it will
also be builtin for that case. This looks like a rather old bug, but
I have never seen this in randconfig testing until today.
That's because the comedi stuff has only recently been configurable as
built-in.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/staging/comedi/Kconfig | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
v2: fix typo from first version, forgot to amend the patch after successfully
testing until I had sent it out.
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 6079c23237d5..7a655ed071a3 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -505,7 +505,6 @@ config COMEDI_NI_ATMIO16D
config COMEDI_NI_LABPC_ISA
tristate "NI Lab-PC and compatibles ISA support"
select COMEDI_NI_LABPC
- select COMEDI_NI_LABPC_ISADMA if ISA_DMA_API
---help---
Enable support for National Instruments Lab-PC and compatibles
Lab-PC-1200, Lab-PC-1200AI, Lab-PC+.
@@ -1315,6 +1314,9 @@ config COMEDI_NI_LABPC
config COMEDI_NI_LABPC_ISADMA
tristate
+ default COMEDI_NI_LABPC
+ depends on COMEDI_NI_LABPC_ISA != n
+ depends on ISA_DMA_API
select COMEDI_ISADMA
config COMEDI_NI_TIO
Thanks for the fix!
Reviewed-by: Ian Abbott <abbotti@xxxxxxxxx>
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Web: http://www.mev.co.uk/ )=-
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