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Message-ID: <4797644A.7060201@scram.de>
Date: Wed, 23 Jan 2008 16:59:06 +0100
From: Jochen Friedrich <jochen@...am.de>
To: Vitaly Bordug <vitb@...nel.crashing.org>
CC: kumar Gala <galak@...nel.crashing.org>,
Scott Wood <scottwood@...escale.com>,
"Kernel, Linux" <linux-kernel@...r.kernel.org>,
linuxppc-dev list <linuxppc-dev@...abs.org>
Subject: [PATCHv2 1/8] [POWERPC] Remove unused m8xx_cpm_hostalloc/free/dump()
m8xx_cpm_hostalloc is still defined in commproc.c, but no users are left
in the kernel tree. m8xx_cpm_hostfree and m8xx_cpm_hostdump are only
defined in the headers. Remove this dead code.
Signed-off-by: Jochen Friedrich <jochen@...am.de>
---
arch/powerpc/sysdev/commproc.c | 37 -------------------------------------
arch/ppc/8xx_io/commproc.c | 38 --------------------------------------
include/asm-powerpc/commproc.h | 4 ----
include/asm-ppc/commproc.h | 4 ----
4 files changed, 0 insertions(+), 83 deletions(-)
diff --git a/arch/powerpc/sysdev/commproc.c b/arch/powerpc/sysdev/commproc.c
index 621bc6c..818d4b0 100644
--- a/arch/powerpc/sysdev/commproc.c
+++ b/arch/powerpc/sysdev/commproc.c
@@ -48,8 +48,6 @@
#ifndef CONFIG_PPC_CPM_NEW_BINDING
static void m8xx_cpm_dpinit(void);
#endif
-static uint host_buffer; /* One page of host buffer */
-static uint host_end; /* end + 1 */
cpm8xx_t __iomem *cpmp; /* Pointer to comm processor space */
immap_t __iomem *mpc8xx_immr;
static cpic8xx_t __iomem *cpic_reg;
@@ -268,41 +266,6 @@ out:
}
EXPORT_SYMBOL(cpm_command);
-/* We used to do this earlier, but have to postpone as long as possible
- * to ensure the kernel VM is now running.
- */
-static void
-alloc_host_memory(void)
-{
- dma_addr_t physaddr;
-
- /* Set the host page for allocation.
- */
- host_buffer = (uint)dma_alloc_coherent(NULL, PAGE_SIZE, &physaddr,
- GFP_KERNEL);
- host_end = host_buffer + PAGE_SIZE;
-}
-
-/* We also own one page of host buffer space for the allocation of
- * UART "fifos" and the like.
- */
-uint
-m8xx_cpm_hostalloc(uint size)
-{
- uint retloc;
-
- if (host_buffer == 0)
- alloc_host_memory();
-
- if ((host_buffer + size) >= host_end)
- return(0);
-
- retloc = host_buffer;
- host_buffer += size;
-
- return(retloc);
-}
-
/* Set a baud rate generator. This needs lots of work. There are
* four BRGs, any of which can be wired to any channel.
* The internal baud rate clock is the system clock divided by 16.
diff --git a/arch/ppc/8xx_io/commproc.c b/arch/ppc/8xx_io/commproc.c
index 9da880b..3f93af8 100644
--- a/arch/ppc/8xx_io/commproc.c
+++ b/arch/ppc/8xx_io/commproc.c
@@ -55,8 +55,6 @@
})
static void m8xx_cpm_dpinit(void);
-static uint host_buffer; /* One page of host buffer */
-static uint host_end; /* end + 1 */
cpm8xx_t *cpmp; /* Pointer to comm processor space */
/* CPM interrupt vector functions.
@@ -68,7 +66,6 @@ struct cpm_action {
static struct cpm_action cpm_vecs[CPMVEC_NR];
static irqreturn_t cpm_interrupt(int irq, void * dev);
static irqreturn_t cpm_error_interrupt(int irq, void *dev);
-static void alloc_host_memory(void);
/* Define a table of names to identify CPM interrupt handlers in
* /proc/interrupts.
*/
@@ -158,21 +155,6 @@ m8xx_cpm_reset(void)
cpmp = (cpm8xx_t *)commproc;
}
-/* We used to do this earlier, but have to postpone as long as possible
- * to ensure the kernel VM is now running.
- */
-static void
-alloc_host_memory(void)
-{
- dma_addr_t physaddr;
-
- /* Set the host page for allocation.
- */
- host_buffer = (uint)dma_alloc_coherent(NULL, PAGE_SIZE, &physaddr,
- GFP_KERNEL);
- host_end = host_buffer + PAGE_SIZE;
-}
-
/* This is called during init_IRQ. We used to do it above, but this
* was too early since init_IRQ was not yet called.
*/
@@ -319,26 +301,6 @@ cpm_free_handler(int cpm_vec)
cpm_vecs[cpm_vec].dev_id = NULL;
}
-/* We also own one page of host buffer space for the allocation of
- * UART "fifos" and the like.
- */
-uint
-m8xx_cpm_hostalloc(uint size)
-{
- uint retloc;
-
- if (host_buffer == 0)
- alloc_host_memory();
-
- if ((host_buffer + size) >= host_end)
- return(0);
-
- retloc = host_buffer;
- host_buffer += size;
-
- return(retloc);
-}
-
/* Set a baud rate generator. This needs lots of work. There are
* four BRGs, any of which can be wired to any channel.
* The internal baud rate clock is the system clock divided by 16.
diff --git a/include/asm-powerpc/commproc.h b/include/asm-powerpc/commproc.h
index 9e3b864..9757521 100644
--- a/include/asm-powerpc/commproc.h
+++ b/include/asm-powerpc/commproc.h
@@ -87,10 +87,6 @@ extern uint cpm_dpram_phys(u8* addr);
extern void cpm_setbrg(uint brg, uint rate);
-extern uint m8xx_cpm_hostalloc(uint size);
-extern int m8xx_cpm_hostfree(uint start);
-extern void m8xx_cpm_hostdump(void);
-
extern void cpm_load_patch(cpm8xx_t *cp);
/* Buffer descriptors used by many of the CPM protocols.
diff --git a/include/asm-ppc/commproc.h b/include/asm-ppc/commproc.h
index 462abb1..5418d6d 100644
--- a/include/asm-ppc/commproc.h
+++ b/include/asm-ppc/commproc.h
@@ -75,10 +75,6 @@ extern void *cpm_dpram_addr(unsigned long offset);
extern uint cpm_dpram_phys(u8* addr);
extern void cpm_setbrg(uint brg, uint rate);
-extern uint m8xx_cpm_hostalloc(uint size);
-extern int m8xx_cpm_hostfree(uint start);
-extern void m8xx_cpm_hostdump(void);
-
extern void cpm_load_patch(volatile immap_t *immr);
/* Buffer descriptors used by many of the CPM protocols.
--
1.5.3.8
--
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