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osmo-sgsn
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gtphub: remove llist_first, llist_last macros 

Use list_first_entry_or_null instead of llist_first, which has been
present in libosmocore since the 0.10.0 release.

Use llist_last_entry instead of llist_last (also present since
libosmocore 0.10.0). This macro does not have a check for an empty
list, however the only user is already checking for an empty list
before using the macro.

This solves a build error, as llist_last was defined in libosmocore
Icf455bf6ba9d60bd311af17c9e80febaa42cacc9 (should probably be reverted
for backwards compatibility with previous osmo-sgsn versions?):

gtphub.c:68:0: error: "llist_last" redefined [-Werror]
 #define llist_last(head, type, entry) \

In file included from /build/deps/install/stow/libosmocore/include/osmocom/core/timer.h:46:0,
                 from /build/deps/install/stow/osmo-ggsn/include/gtp.h:17,
                 from gtphub.c:32:
/build/deps/install/stow/libosmocore/include/osmocom/core/linuxlist.h:245:0: note: this is the location of the previous definition
 #define llist_last(head) (head)->prev

Change-Id: Ia0496c24386cd13b1e9e604aa2d425d3fa28d352
This commit is contained in:
Oliver Smith 2021-07-12 11:34:51 +02:00
parent e9336a72a0
commit 3aba7ad2ae
1 changed files with 2 additions and 13 deletions
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15
src/gtphub/gtphub.c
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@ -59,15 +59,6 @@ void *osmo_gtphub_ctx;
/* TODO move this to osmocom/core/select.h ? */
typedef int (*osmo_fd_cb_t)(struct osmo_fd *fd, unsigned int what);
/* TODO move this to osmocom/core/linuxlist.h ? */
#define __llist_first(head) (((head)->next == (head)) ? NULL : (head)->next)
#define llist_first(head, type, entry) \
llist_entry(__llist_first(head), type, entry)
#define __llist_last(head) (((head)->next == (head)) ? NULL : (head)->prev)
#define llist_last(head, type, entry) \
llist_entry(__llist_last(head), type, entry)
/* TODO move GTP header stuff to openggsn/gtp/ ? See gtp_decaps*() */
enum gtp_rc {
@ -613,7 +604,7 @@ void expiry_add(struct expiry *exq, struct expiring_item *item, time_t now)
OSMO_ASSERT(llist_empty(&exq->items)
|| (item->expiry
>= llist_last(&exq->items, struct expiring_item, entry)->expiry));
>= llist_last_entry(&exq->items, struct expiring_item, entry)->expiry));
/* Add/move to the tail to always sort by expiry, ascending. */
llist_del(&item->entry);
@ -1142,9 +1133,7 @@ static const char *gtphub_peer_strb(struct gtphub_peer *peer, char *buf,
if (llist_empty(&peer->addresses))
return "(addressless)";
struct gtphub_peer_addr *a = llist_first(&peer->addresses,
struct gtphub_peer_addr,
entry);
struct gtphub_peer_addr *a = llist_first_entry_or_null(&peer->addresses, struct gtphub_peer_addr, entry);
return gsn_addr_to_strb(&a->addr, buf, buflen);
}