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-rw-r--r--drivers/net/ppp_generic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index c6de566188e4..0986f6c843e6 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -83,7 +83,7 @@ struct ppp_file {
int dead; /* unit/channel has been shut down */
};
-#define PF_TO_X(pf, X) ((X *)((char *)(pf) - offsetof(X, file)))
+#define PF_TO_X(pf, X) container_of(pf, X, file)
#define PF_TO_PPP(pf) PF_TO_X(pf, struct ppp)
#define PF_TO_CHANNEL(pf) PF_TO_X(pf, struct channel)