RE: [PATCH] ARM:SAMSUNG: DMA Cleanup as per sparse

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Kukjin Kim wrote:
> 
> Sangwook Lee wrote:
> >
> > Function declaration differs between file:s3c-pl330.c and file:dma.h
> > and SPARSE (Documentation/sparse.txt) gives error messages
> >
> > Signed-off-by: Sangwook Lee <sangwook.lee@xxxxxxxxxx>
> > ---
> >  arch/arm/plat-samsung/include/plat/dma.h |   16 ++++++++--------
> >  1 files changed, 8 insertions(+), 8 deletions(-)
> >
> > diff --git a/arch/arm/plat-samsung/include/plat/dma.h b/arch/arm/plat-
> > samsung/include/plat/dma.h
> > index 2e8f8c6..7365f46 100644
> > --- a/arch/arm/plat-samsung/include/plat/dma.h
> > +++ b/arch/arm/plat-samsung/include/plat/dma.h
> > @@ -62,7 +62,7 @@ typedef int  (*s3c2410_dma_opfn_t)(struct
> > s3c2410_dma_chan *,
> >   * request a dma channel exclusivley
> >  */
> >
> > -extern int s3c2410_dma_request(unsigned int channel,
> > +extern int s3c2410_dma_request(enum dma_ch id,
> >  			       struct s3c2410_dma_client *, void *dev);
> >
> >
> > @@ -71,14 +71,14 @@ extern int s3c2410_dma_request(unsigned int channel,
> >   * change the state of the dma channel
> >  */
> >
> > -extern int s3c2410_dma_ctrl(unsigned int channel, enum s3c2410_chan_op
op);
> > +extern int s3c2410_dma_ctrl(enum dma_ch id, enum s3c2410_chan_op op);
> >
> >  /* s3c2410_dma_setflags
> >   *
> >   * set the channel's flags to a given state
> >  */
> >
> > -extern int s3c2410_dma_setflags(unsigned int channel,
> > +extern int s3c2410_dma_setflags(enum dma_ch id,
> >  				unsigned int flags);
> >
> >  /* s3c2410_dma_free
> > @@ -86,7 +86,7 @@ extern int s3c2410_dma_setflags(unsigned int channel,
> >   * free the dma channel (will also abort any outstanding operations)
> >  */
> >
> > -extern int s3c2410_dma_free(unsigned int channel, struct
s3c2410_dma_client *);
> > +extern int s3c2410_dma_free(enum dma_ch id, struct s3c2410_dma_client
*);
> >
> >  /* s3c2410_dma_enqueue
> >   *
> > @@ -95,7 +95,7 @@ extern int s3c2410_dma_free(unsigned int channel,
struct
> > s3c2410_dma_client *);
> >   * drained before the buffer is given to the DMA system.
> >  */
> >
> > -extern int s3c2410_dma_enqueue(unsigned int channel, void *id,
> > +extern int s3c2410_dma_enqueue(enum dma_ch idx, void *id,
> >  			       dma_addr_t data, int size);
> >
> >  /* s3c2410_dma_config
> > @@ -103,14 +103,14 @@ extern int s3c2410_dma_enqueue(unsigned int
channel,
> > void *id,
> >   * configure the dma channel
> >  */
> >
> > -extern int s3c2410_dma_config(unsigned int channel, int xferunit);
> > +extern int s3c2410_dma_config(enum dma_ch id, int xferunit);
> >
> >  /* s3c2410_dma_devconfig
> >   *
> >   * configure the device we're talking to
> >  */
> >
> > -extern int s3c2410_dma_devconfig(unsigned int channel,
> > +extern int s3c2410_dma_devconfig(enum dma_ch id,
> >  		enum s3c2410_dmasrc source, unsigned long devaddr);
> >
> >  /* s3c2410_dma_getposition
> > @@ -118,7 +118,7 @@ extern int s3c2410_dma_devconfig(unsigned int
channel,
> >   * get the position that the dma transfer is currently at
> >  */
> >
> > -extern int s3c2410_dma_getposition(unsigned int channel,
> > +extern int s3c2410_dma_getposition(enum dma_ch id,
> >  				   dma_addr_t *src, dma_addr_t *dest);
> >
> >  extern int s3c2410_dma_set_opfn(unsigned int, s3c2410_dma_opfn_t rtn);
> > --

Hi Sangwook Lee,

I reverted this in my -fix tree just now because this makes following error
with s3c2410_defconfig.

arch/arm/plat-samsung/include/plat/dma.h:66: warning: 'enum dma_ch' declared
inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:66: warning: its scope is only this
definition or declaration, which is probably not what you want
arch/arm/plat-samsung/include/plat/dma.h:74: warning: 'enum dma_ch' declared
inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:82: warning: 'enum dma_ch' declared
inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:89: warning: 'enum dma_ch' declared
inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:99: warning: 'enum dma_ch' declared
inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:106: warning: 'enum dma_ch'
declared inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:114: warning: 'enum dma_ch'
declared inside parameter list
arch/arm/plat-samsung/include/plat/dma.h:122: warning: 'enum dma_ch'
declared inside parameter list
drivers/mmc/host/s3cmci.c: In function 'finalize_request':
drivers/mmc/host/s3cmci.c:889: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c: In function 's3cmci_dma_setup':
drivers/mmc/host/s3cmci.c:927: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:930: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:933: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c: In function 's3cmci_prepare_dma':
drivers/mmc/host/s3cmci.c:1091: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:1111: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:1114: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:1119: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c: In function 's3cmci_probe':
drivers/mmc/host/s3cmci.c:1692: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c:1778: error: type of formal parameter 1 is
incomplete
drivers/mmc/host/s3cmci.c: In function 's3cmci_remove':
drivers/mmc/host/s3cmci.c:1840: error: type of formal parameter 1 is
incomplete

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

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