[PATCH 2.6.4-rc2] netdevice.h add netif_msg_init helper
From: Don Fry <hidden>
Date: 2004-03-04 11:05:37
This patch adds a helper function to initialize the debug bit mask for use with netif_msg_*. When the debug_value is out of range it returns the default_msg_enable_bits.
--- linux-2.6.4-rc2/include/linux/orig.netdevice.h Thu Mar 4 09:59:08 2004
+++ linux-2.6.4-rc2/include/linux/netdevice.h Thu Mar 4 10:56:19 2004@@ -774,6 +774,17 @@ #define netif_msg_hw(p) ((p)->msg_enable & NETIF_MSG_HW) #define netif_msg_wol(p) ((p)->msg_enable & NETIF_MSG_WOL) +static inline u32 netif_msg_init(int debug_value, int default_msg_enable_bits) +{ + /* use default */ + if (debug_value < 0 || debug_value > (sizeof(u32) * 8)) + return default_msg_enable_bits; + if (debug_value == 0) /* no output */ + return 0; + /* set low N bits */ + return(((debug_value == (sizeof(u32)*8)) ? 0 : (1 << debug_value)) - 1); +} + /* Schedule rx intr now? */ static inline int netif_rx_schedule_prep(struct net_device *dev)
--
Don Fry
brazilnut@us.ibm.com