[PATCH v2 2/4] net: i825xx: Use absolute_pointer for memcpy from fixed memory location

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



gcc 11.x reports the following compiler warning/error.

drivers/net/ethernet/i825xx/82596.c: In function 'i82596_probe':
    ./arch/m68k/include/asm/string.h:72:25: error:
            '__builtin_memcpy' reading 6 bytes from a region of size 0
                    [-Werror=stringop-overread]

Use absolute_pointer() to work around the problem.

Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
v2: No change

 drivers/net/ethernet/i825xx/82596.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index b8a40146b895..b482f6f633bd 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -1144,7 +1144,7 @@ static struct net_device * __init i82596_probe(void)
 			err = -ENODEV;
 			goto out;
 		}
-		memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN);	/* YUCK! Get addr from NOVRAM */
+		memcpy(eth_addr, absolute_pointer(0xfffc1f2c), ETH_ALEN); /* YUCK! Get addr from NOVRAM */
 		dev->base_addr = MVME_I596_BASE;
 		dev->irq = (unsigned) MVME16x_IRQ_I596;
 		goto found;
-- 
2.33.0




[Index of Archives]     [Netdev]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux Admin]     [Samba]

  Powered by Linux