V4L/DVB (6575): cx23885/: cleanups

This patch contains the following cleanups:
- make the following needlessly global code static:
  - cx23885-core.c: struct cx23885_sram_channels[]
  - cx23885-core.c: struct cx23887_sram_channels[]
  - cx23885-core.c: cx23885_wakeup()
  - cx23885-core.c: cx23885_sram_channel_setup()
  - cx23885-core.c: cx23885_sram_channel_dump()
  - cx23885-core.c: cx23885_risc_disasm()
  - cx23885-core.c: cx23885_shutdown()
  - cx23885-core.c: cx23885_reset()
  - cx23885-core.c: cx23885_dev_unregister()
  - cx23885-core.c: cx23885_risc_databuffer()
  - cx23885-core.c: cx23885_risc_stopper()
- #if 0 the following unused functions:
  - cx23885-core.c: cx23885_risc_buffer()
  - cx23885-core.c: cx23885_cancel_buffers()
- remove the following unused EXPORT_SYMBOL's:
  - cx23885-cards.c: cx23885_boards
  - cx23885-i2c.c: cx23885_call_i2c_clients

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Reviewed-by: Steven Toth <stoth@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

4 files changed, 23 insertions, 80 deletions

diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c
index b9012acabb2f..134b931b160e 100644
--- a/drivers/media/video/cx23885/cx23885-cards.c
+++ b/drivers/media/video/cx23885/cx23885-cards.c
@@ -270,8 +270,6 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 
 /* ------------------------------------------------------------------ */
 
-EXPORT_SYMBOL(cx23885_boards);
-
 /*
  * Local variables:
  * c-basic-offset: 8
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c
index 3cdd136477e5..0c9c9af0efb7 100644
--- a/drivers/media/video/cx23885/cx23885-core.c
+++ b/drivers/media/video/cx23885/cx23885-core.c
@@ -73,7 +73,7 @@ static LIST_HEAD(cx23885_devlist);
  * 0x00010ea0 0x00010xxx Free
  */
 
-struct sram_channel cx23885_sram_channels[] = {
+static struct sram_channel cx23885_sram_channels[] = {
         [SRAM_CH01] = {
                 .name           = "test ch1",
                 .cmds_start     = 0x10000,
@@ -205,7 +205,7 @@ struct sram_channel cx23885_sram_channels[] = {
  * 0x00010ea0 0x00010xxx Free
  */
 
-struct sram_channel cx23887_sram_channels[] = {
+static struct sram_channel cx23887_sram_channels[] = {
         [SRAM_CH01] = {
                 .name           = "test ch1",
                 .cmds_start     = 0x0,
@@ -356,8 +356,8 @@ static int cx23885_risc_decode(u32 risc)
         return incr[risc >> 28] ? incr[risc >> 28] : 1;
 }
 
-void cx23885_wakeup(struct cx23885_tsport *port,
-                    struct cx23885_dmaqueue *q, u32 count)
+static void cx23885_wakeup(struct cx23885_tsport *port,
+                           struct cx23885_dmaqueue *q, u32 count)
 {
         struct cx23885_dev *dev = port->dev;
         struct cx23885_buffer *buf;
@@ -391,12 +391,10 @@ void cx23885_wakeup(struct cx23885_tsport *port,
                 printk("%s: %d buffers handled (should be 1)\n",
                        __FUNCTION__, bc);
 }
-void cx23885_sram_channel_dump(struct cx23885_dev *dev,
-                               struct sram_channel *ch);
 
-int cx23885_sram_channel_setup(struct cx23885_dev *dev,
-                               struct sram_channel *ch,
-                               unsigned int bpl, u32 risc)
+static int cx23885_sram_channel_setup(struct cx23885_dev *dev,
+                                      struct sram_channel *ch,
+                                      unsigned int bpl, u32 risc)
 {
         unsigned int i, lines;
         u32 cdt;
@@ -467,8 +465,8 @@ int cx23885_sram_channel_setup(struct cx23885_dev *dev,
         return 0;
 }
 
-void cx23885_sram_channel_dump(struct cx23885_dev *dev,
-                               struct sram_channel *ch)
+static void cx23885_sram_channel_dump(struct cx23885_dev *dev,
+                                      struct sram_channel *ch)
 {
         static char *name[] = {
                 "init risc lo",
@@ -529,8 +527,8 @@ void cx23885_sram_channel_dump(struct cx23885_dev *dev,
                dev->name, cx_read(ch->cnt2_reg));
 }
 
-void cx23885_risc_disasm(struct cx23885_tsport *port,
-                         struct btcx_riscmem *risc)
+static void cx23885_risc_disasm(struct cx23885_tsport *port,
+                                struct btcx_riscmem *risc)
 {
         struct cx23885_dev *dev = port->dev;
         unsigned int i, j, n;
@@ -548,7 +546,7 @@ void cx23885_risc_disasm(struct cx23885_tsport *port,
         }
 }
 
-void cx23885_shutdown(struct cx23885_dev *dev)
+static void cx23885_shutdown(struct cx23885_dev *dev)
 {
         /* disable RISC controller */
         cx_write(DEV_CNTRL2, 0);
@@ -578,7 +576,7 @@ void cx23885_shutdown(struct cx23885_dev *dev)
 
 }
 
-void cx23885_reset(struct cx23885_dev *dev)
+static void cx23885_reset(struct cx23885_dev *dev)
 {
         dprintk(1, "%s()\n", __FUNCTION__);
 
@@ -636,8 +634,8 @@ static int get_resources(struct cx23885_dev *dev)
 }
 
 static void cx23885_timeout(unsigned long data);
-int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
-                         u32 reg, u32 mask, u32 value);
+static int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
+                                u32 reg, u32 mask, u32 value);
 
 static int cx23885_init_tsport(struct cx23885_dev *dev, struct cx23885_tsport *port, int portno)
 {
@@ -837,7 +835,7 @@ static int cx23885_dev_setup(struct cx23885_dev *dev)
         return 0;
 }
 
-void cx23885_dev_unregister(struct cx23885_dev *dev)
+static void cx23885_dev_unregister(struct cx23885_dev *dev)
 {
         release_mem_region(pci_resource_start(dev->pci,0),
                            pci_resource_len(dev->pci,0));
@@ -912,49 +910,12 @@ static u32* cx23885_risc_field(u32 *rp, struct scatterlist *sglist,
         return rp;
 }
 
-int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
-                        struct scatterlist *sglist, unsigned int top_offset,
-                        unsigned int bottom_offset, unsigned int bpl,
-                        unsigned int padding, unsigned int lines)
-{
-        u32 instructions, fields;
-        u32 *rp;
-        int rc;
-
-        fields = 0;
-        if (UNSET != top_offset)
-                fields++;
-        if (UNSET != bottom_offset)
-                fields++;
-
-        /* estimate risc mem: worst case is one write per page border +
-           one write per scan line + syncs + jump (all 2 dwords).  Padding
-           can cause next bpl to start close to a page border.  First DMA
-           region may be smaller than PAGE_SIZE */
-        /* write and jump need and extra dword */
-        instructions  = fields * (1 + ((bpl + padding) * lines) / PAGE_SIZE + lines);
-        instructions += 2;
-        if ((rc = btcx_riscmem_alloc(pci,risc,instructions*12)) < 0)
-                return rc;
-
-        /* write risc instructions */
-        rp = risc->cpu;
-        if (UNSET != top_offset)
-                rp = cx23885_risc_field(rp, sglist, top_offset, 0,
-                                        bpl, padding, lines);
-        if (UNSET != bottom_offset)
-                rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x200,
-                                        bpl, padding, lines);
-
-        /* save pointer to jmp instruction address */
-        risc->jmp = rp;
-        BUG_ON((risc->jmp - risc->cpu + 2) * sizeof (*risc->cpu) > risc->size);
-        return 0;
-}
 
-int cx23885_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
-                            struct scatterlist *sglist, unsigned int bpl,
-                            unsigned int lines)
+static int cx23885_risc_databuffer(struct pci_dev *pci,
+                                   struct btcx_riscmem *risc,
+                                   struct scatterlist *sglist,
+                                   unsigned int bpl,
+                                   unsigned int lines)
 {
         u32 instructions;
         u32 *rp;
@@ -981,8 +942,8 @@ int cx23885_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
         return 0;
 }
 
-int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
-                         u32 reg, u32 mask, u32 value)
+static int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
+                                u32 reg, u32 mask, u32 value)
 {
         u32 *rp;
         int rc;
@@ -1243,16 +1204,6 @@ static void do_cancel_buffers(struct cx23885_tsport *port, char *reason,
         spin_unlock_irqrestore(&port->slock, flags);
 }
 
-void cx23885_cancel_buffers(struct cx23885_tsport *port)
-{
-        struct cx23885_dev *dev = port->dev;
-        struct cx23885_dmaqueue *q = &port->mpegq;
-
-        dprintk(1, "%s()\n", __FUNCTION__);
-        del_timer_sync(&q->timeout);
-        cx23885_stop_dma(port);
-        do_cancel_buffers(port, "cancel", 0);
-}
 
 static void cx23885_timeout(unsigned long data)
 {
diff --git a/drivers/media/video/cx23885/cx23885-i2c.c b/drivers/media/video/cx23885/cx23885-i2c.c
index f7e8a481696d..08e92df33168 100644
--- a/drivers/media/video/cx23885/cx23885-i2c.c
+++ b/drivers/media/video/cx23885/cx23885-i2c.c
@@ -368,8 +368,6 @@ int cx23885_i2c_unregister(struct cx23885_i2c *bus)
 
 /* ----------------------------------------------------------------------- */
 
-EXPORT_SYMBOL(cx23885_call_i2c_clients);
-
 /*
  * Local variables:
  * c-basic-offset: 8
diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h
index dec4dc2fcbb4..205640cc48f7 100644
--- a/drivers/media/video/cx23885/cx23885.h
+++ b/drivers/media/video/cx23885/cx23885.h
@@ -254,10 +254,6 @@ struct sram_channel {
 #define cx_set(reg,bit)          cx_andor((reg),(bit),(bit))
 #define cx_clear(reg,bit)        cx_andor((reg),(bit),0)
 
-extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
-        struct sram_channel *ch,
-        unsigned int bpl, u32 risc);
-
 /* ----------------------------------------------------------- */
 /* cx23885-cards.c                                                */