On 2012-06-06 17:22, H Hartley Sweeten wrote:
On Wednesday, June 06, 2012 3:17 AM, Ian Abbott wrote:
On 2012-06-05 19:20, H Hartley Sweeten wrote:
Local functions should be marked static to prevent them from
being exposed globally.
This quiets the following sparse warnings:
warning: symbol 'ni_release_gpct_mite_channel' was not declared. Should it be static?
warning: symbol 'ni_prime_channelgain_list' was not declared. Should it be static?
Signed-off-by: H Hartley Sweeten<hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott<abbotti@xxxxxxxxx>
Cc: Mori Hess<fmhess@xxxxxxxxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman<gregkh@xxxxxxxxxxxxxxxxxxx>
---
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index fd232bc..3b3a0b1 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -644,7 +644,7 @@ static void ni_release_ao_mite_channel(struct comedi_device *dev)
#endif /* PCIDMA */
}
-void ni_release_gpct_mite_channel(struct comedi_device *dev,
+static void ni_release_gpct_mite_channel(struct comedi_device *dev,
unsigned gpct_index)
{
#ifdef PCIDMA
@@ -1880,7 +1880,7 @@ static int ni_ai_insn_read(struct comedi_device *dev,
return insn->n;
}
This results in a compiler warning about the unused function
ni_release_gpct_mite_channel when compiling ni_atmio.c. It was unused
before of course, but now it is static, the compiler realizes it!
Ugh... c code including c code... I didn't notice that until now.
It could be fixed for now by moving the '#ifdef PCIDMA' and matching
'#endif' to surround the whole function, though I guess we want to try
and get rid of the #ifdef's eventually. It's tricky because
ni_mio_common.c isn't a standalone compilation unit, it's #include'd by
some other .c files. We might need to have a go at splitting it up at
some point.
The ni_mio_common.c file should just get turned into a library module.
Right now it's a bit of a mess. The individual drivers define PCIDMA
before including ni_mio_common.c. The only one that sets the define
is ni_pcimio but it's also included by ni_atmio and ni_mio_cs.
I'll look it over and see what might be done to fix it.
You have to be careful with module dependencies if doing that, as you
don't want the ni_atmio module to depend on the mite and ni_tiocmd
modules for example.
--
-=( Ian Abbott @ MEV Ltd. E-mail: <abbotti@xxxxxxxxx> )=-
-=( Tel: +44 (0)161 477 1898 FAX: +44 (0)161 718 3587 )=-
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