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[Qemu-arm] [PATCH] Reducing stack frame size in stream_process_mem2s()
From: |
rutu . shah . 26 |
Subject: |
[Qemu-arm] [PATCH] Reducing stack frame size in stream_process_mem2s() |
Date: |
Mon, 3 Oct 2016 22:26:25 +0530 |
From: Rutuja Shah <address@hidden>
This patch allocates memory for txbuf array on the heap rather than the stack.
As a result, the stack frame size is reduced.
Signed-off-by: Rutuja Shah <address@hidden>
---
hw/dma/xilinx_axidma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c
index b135a5f..6c63575 100644
--- a/hw/dma/xilinx_axidma.c
+++ b/hw/dma/xilinx_axidma.c
@@ -256,13 +256,14 @@ static void stream_process_mem2s(struct Stream *s,
StreamSlave *tx_data_dev,
StreamSlave *tx_control_dev)
{
uint32_t prev_d;
- unsigned char txbuf[16 * 1024];
+ unsigned char *txbuf;
unsigned int txlen;
if (!stream_running(s) || stream_idle(s)) {
return;
}
+ txbuf = g_malloc(16 * 1024);
while (1) {
stream_desc_load(s, s->regs[R_CURDESC]);
@@ -304,6 +305,7 @@ static void stream_process_mem2s(struct Stream *s,
StreamSlave *tx_data_dev,
break;
}
}
+ g_free(txbuf);
}
static size_t stream_process_s2mem(struct Stream *s, unsigned char *buf,
--
1.9.1