From: Mike Rapoport <r...@linux.ibm.com>
The ISA_DMA_THRESHOLD variable is set by several platforms but never
referenced.
Remove it.
Signed-off-by: Mike Rapoport <r...@linux.ibm.com>
---
arch/powerpc/include/asm/dma.h | 3 +--
arch/powerpc/kernel/setup_32.c | 1 -
arch/powerpc/platforms/44x/warp.c | 3 ---
arch/powerpc/platforms/52xx/efika.c | 1 -
arch/powerpc/platforms/amigaone/setup.c | 1 -
arch/powerpc/platforms/chrp/setup.c | 1 -
arch/powerpc/platforms/powermac/setup.c | 1 -
7 files changed, 1 insertion(+), 10 deletions(-)
diff --git a/arch/powerpc/include/asm/dma.h b/arch/powerpc/include/asm/dma.h
index 1b4f0254868f..6161a9596196 100644
--- a/arch/powerpc/include/asm/dma.h
+++ b/arch/powerpc/include/asm/dma.h
@@ -151,10 +151,9 @@
#define DMA2_EXT_REG 0x4D6
#ifndef __powerpc64__
- /* in arch/ppc/kernel/setup.c -- Cort */
+ /* in arch/powerpc/kernel/setup_32.c -- Cort */
extern unsigned int DMA_MODE_WRITE;
extern unsigned int DMA_MODE_READ;
- extern unsigned long ISA_DMA_THRESHOLD;
#else
#define DMA_MODE_READ 0x44 /* I/O to memory, no autoinit,
increment, single mode */
#define DMA_MODE_WRITE 0x48 /* memory to I/O, no autoinit,
increment, single mode */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index a7541edf0cdb..e019f450cf9a 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -57,7 +57,6 @@ EXPORT_SYMBOL_GPL(boot_cpuid_phys);
int smp_hw_index[NR_CPUS];
EXPORT_SYMBOL(smp_hw_index);
-unsigned long ISA_DMA_THRESHOLD;
unsigned int DMA_MODE_READ;
unsigned int DMA_MODE_WRITE;
diff --git a/arch/powerpc/platforms/44x/warp.c
b/arch/powerpc/platforms/44x/warp.c
index 6620b64e4963..665f18e37efb 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -43,9 +43,6 @@ static int __init warp_probe(void)
if (!of_machine_is_compatible("pika,warp"))
return 0;
- /* For arch_dma_alloc */
- ISA_DMA_THRESHOLD = ~0L;
-
return 1;
}
diff --git a/arch/powerpc/platforms/52xx/efika.c
b/arch/powerpc/platforms/52xx/efika.c
index 61538869e88a..4514a6f7458a 100644
--- a/arch/powerpc/platforms/52xx/efika.c
+++ b/arch/powerpc/platforms/52xx/efika.c
@@ -205,7 +205,6 @@ static int __init efika_probe(void)
if (strcmp(model, "EFIKA5K2"))
return 0;
- ISA_DMA_THRESHOLD = ~0L;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
diff --git a/arch/powerpc/platforms/amigaone/setup.c
b/arch/powerpc/platforms/amigaone/setup.c
index ea5e45e32683..f5d0bf999759 100644
--- a/arch/powerpc/platforms/amigaone/setup.c
+++ b/arch/powerpc/platforms/amigaone/setup.c
@@ -146,7 +146,6 @@ static int __init amigaone_probe(void)
*/
cur_cpu_spec->cpu_features &= ~CPU_FTR_NEED_COHERENT;
- ISA_DMA_THRESHOLD = 0x00ffffff;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
diff --git a/arch/powerpc/platforms/chrp/setup.c
b/arch/powerpc/platforms/chrp/setup.c
index fcf6f2342ef4..590d292f47e6 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -573,7 +573,6 @@ static int __init chrp_probe(void)
if (strcmp(dtype, "chrp"))
return 0;
- ISA_DMA_THRESHOLD = ~0L;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
diff --git a/arch/powerpc/platforms/powermac/setup.c
b/arch/powerpc/platforms/powermac/setup.c
index c6d5333729ed..95fb4feb6ccc 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -586,7 +586,6 @@ static int __init pmac_probe(void)
#ifdef CONFIG_PPC32
/* isa_io_base gets set in pmac_pci_init */
- ISA_DMA_THRESHOLD = ~0L;
DMA_MODE_READ = 1;
DMA_MODE_WRITE = 2;
#endif /* CONFIG_PPC32 */
--
2.24.0
