From: Enrico Scholz <enrico.scholz@xxxxxxxxxxxxxxxxx>
v8_flush_dcache_range() and v8_inv_dcache_range() are implemented
under the assumption that their 'end' parameter points *after* the
range.
Fix callers to use it in this way.
This fixes e.g. spurious corruptions in the last octet when sending
129 bytes over ethernet.
Signed-off-by: Enrico Scholz <enrico.scholz@xxxxxxxxxxxxxxxxx>
---
arch/arm/cpu/dma_64.c | 2 +-
arch/arm/cpu/mmu_64.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/dma_64.c b/arch/arm/cpu/dma_64.c
index 74d7167860c2..b50572f5e601 100644
--- a/arch/arm/cpu/dma_64.c
+++ b/arch/arm/cpu/dma_64.c
@@ -6,7 +6,7 @@ void arch_sync_dma_for_device(void *vaddr, size_t size,
enum dma_data_direction dir)
{
unsigned long start = (unsigned long)vaddr;
- unsigned long end = start + size - 1;
+ unsigned long end = start + size;
if (dir == DMA_FROM_DEVICE)
v8_inv_dcache_range(start, end);
diff --git a/arch/arm/cpu/mmu_64.c b/arch/arm/cpu/mmu_64.c
index 12cd644de0c7..b48e4732b86d 100644
--- a/arch/arm/cpu/mmu_64.c
+++ b/arch/arm/cpu/mmu_64.c
@@ -282,7 +282,7 @@ void mmu_disable(void)
void dma_inv_range(void *ptr, size_t size)
{
unsigned long start = (unsigned long)ptr;
- unsigned long end = start + size - 1;
+ unsigned long end = start + size;
v8_inv_dcache_range(start, end);
}
@@ -290,7 +290,7 @@ void dma_inv_range(void *ptr, size_t size)
void dma_flush_range(void *ptr, size_t size)
{
unsigned long start = (unsigned long)ptr;
- unsigned long end = start + size - 1;
+ unsigned long end = start + size;
v8_flush_dcache_range(start, end);
}
--
2.44.0
