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[libc] Enable automated extraction of error usage reports

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Add preprocessor magic to the error definitions to enable every error
usage to be tracked.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-05-30 15:29:05 +01:00
parent d2415be069
commit 6c0e8c14be
22 changed files with 1499 additions and 391 deletions
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20
src/net/netdevice.c
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@@ -46,11 +46,13 @@ struct list_head net_devices = LIST_HEAD_INIT ( net_devices );
static struct list_head open_net_devices = LIST_HEAD_INIT ( open_net_devices );
/** Default link status code */
#define EUNKNOWN_LINK_STATUS EINPROGRESS
#define EUNKNOWN_LINK_STATUS __einfo_error ( EINFO_EUNKNOWN_LINK_STATUS )
#define EINFO_EUNKNOWN_LINK_STATUS \
__einfo_uniqify ( EINFO_EINPROGRESS, 0x01, "Unknown" )
/** Human-readable message for the default link status */
struct errortab netdev_errors[] __errortab = {
{ EUNKNOWN_LINK_STATUS, "Unknown" },
__einfo_errortab ( EINFO_EUNKNOWN_LINK_STATUS ),
};
/**
@@ -60,16 +62,12 @@ struct errortab netdev_errors[] __errortab = {
*/
void netdev_link_down ( struct net_device *netdev ) {
switch ( netdev->link_rc ) {
case 0:
case -EUNKNOWN_LINK_STATUS:
/* Avoid clobbering a more detailed link status code, if one
* is already set.
*/
if ( ( netdev->link_rc == 0 ) ||
( netdev->link_rc == -EUNKNOWN_LINK_STATUS ) ) {
netdev->link_rc = -ENOTCONN;
break;
default:
/* Avoid clobbering a more detailed link status code,
* if one is already set.
*/
break;
}
}