ethtool: Allocate register dump buffer with vmalloc()
Some NICs have huge register files which exceed the maximum heap
allocation size.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 91ffce2..dae2fd0 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -815,7 +815,7 @@
if (regs.len > reglen)
regs.len = reglen;
- regbuf = kmalloc(reglen, GFP_USER);
+ regbuf = vmalloc(reglen);
if (!regbuf)
return -ENOMEM;
@@ -830,7 +830,7 @@
ret = 0;
out:
- kfree(regbuf);
+ vfree(regbuf);
return ret;
}