[U-Boot] [PATCH v2 1/2] net: davinci_emac: Round up top tx buffer boundaries for dcache ops

Karl Beldan karl.beldan at gmail.com
Mon Aug 15 19:23:00 CEST 2016


check_cache_range() warns that the top boundaries are not properly
aligned when flushing or invalidating the buffers and make these
operations fail.

This gets rid of the remaining warnings:
CACHE: Misaligned operation at range

Signed-off-by: Karl Beldan <karl.beldan+oss at gmail.com>
---
 drivers/net/davinci_emac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 947bfab..62b7a1d 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -632,7 +632,7 @@ static int davinci_eth_send_packet (struct eth_device *dev,
 				      EMAC_CPPI_EOP_BIT);
 
 	flush_dcache_range((unsigned long)packet,
-			(unsigned long)packet + length);
+			   (unsigned long)packet + ALIGN(length, PKTALIGN));
 
 	/* Send the packet */
 	writel(BD_TO_HW((unsigned long)emac_tx_desc), &adap_emac->TX0HDP);
-- 
2.9.2



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