[PATCH v1 2/4] net: rtl8169: Fix DMA min aligned compile warning in riscv

Minda Chen
2023-06-21T09:06:32Z

Fix rtl8169 descriptor less the DMA min aligned compile warning
for RISC-V SoC platform.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
---
drivers/net/rtl8169.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/rtl8169.c b/drivers/net/rtl8169.c
index dcba51590d..34e4cff1e9 100644
--- a/drivers/net/rtl8169.c
+++ b/drivers/net/rtl8169.c
@@ -311,10 +311,12 @@ static unsigned char rxdata[RX_BUF_LEN];
*
* This can be fixed by defining CONFIG_SYS_NONCACHED_MEMORY which will cause
* the driver to allocate descriptors from a pool of non-cached memory.
+ *
+ * Hardware maintain D-cache coherency in RISC-V architecture.
*/
#if RTL8169_DESC_SIZE < ARCH_DMA_MINALIGN
#if !defined(CONFIG_SYS_NONCACHED_MEMORY) && \
- !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86)
+ !CONFIG_IS_ENABLED(SYS_DCACHE_OFF) && !defined(CONFIG_X86) && !defined(CONFIG_RISCV)
#warning cache-line size is larger than descriptor size
#endif
#endif
--
2.17.1