Messages in this thread Patch in this message | | | From | Julia Lawall <> | Subject | [PATCH 4/5] r8152: constify ethtool_ops structures | Date | Thu, 1 Sep 2016 00:21:22 +0200 |
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Check for ethtool_ops structures that are only stored in the ethtool_ops field of a net_device structure or passed as the second argument to netdev_set_default_ethtool_ops. These contexts are declared const, so ethtool_ops structures that have these properties can be declared as const also.
The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/)
// <smpl> @r disable optional_qualifier@ identifier i; position p; @@ static struct ethtool_ops i@p = { ... };
@ok1@ identifier r.i; struct net_device e; position p; @@ e.ethtool_ops = &i@p;
@ok2@ identifier r.i; expression e; position p; @@ netdev_set_default_ethtool_ops(e, &i@p)
@bad@ position p != {r.p,ok1.p,ok2.p}; identifier r.i; @@ i@p
@depends on !bad disable optional_qualifier@ identifier r.i; @@ static +const struct ethtool_ops i = { ... }; // </smpl>
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
--- drivers/net/usb/r8152.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index f41a8ad..f72f807 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -4032,7 +4032,7 @@ static int rtl8152_set_coalesce(struct net_device *netdev, return ret; } -static struct ethtool_ops ops = { +static const struct ethtool_ops ops = { .get_drvinfo = rtl8152_get_drvinfo, .get_settings = rtl8152_get_settings, .set_settings = rtl8152_set_settings,
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