arehbein has uploaded this change for review.

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ipa: Add helper osmo_ipa_ext_msg_alloc()

Add helper that allocates headroom for extended IPA headers
automatically to go with IPA trx mode

Related: OS#5753
Change-Id: I231026442503e6d7f720fd100f38c01916235d63
---
M include/osmocom/netif/ipa.h
M src/ipa.c
2 files changed, 20 insertions(+), 0 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libosmo-netif refs/changes/23/33423/1

diff --git a/include/osmocom/netif/ipa.h b/include/osmocom/netif/ipa.h
index 0d1085f..12358ba 100644
--- a/include/osmocom/netif/ipa.h
+++ b/include/osmocom/netif/ipa.h
@@ -19,6 +19,8 @@
 } __attribute__ ((packed));
 
 struct msgb *osmo_ipa_msg_alloc(int headroom);
+struct msgb *osmo_ipa_ext_msg_alloc(int headroom);
+
 void osmo_ipa_msg_push_header(struct msgb *msg, uint8_t proto);
 
 int osmo_ipa_process_msg(struct msgb *msg);
diff --git a/src/ipa.c b/src/ipa.c
index 197a47f..84974a3 100644
--- a/src/ipa.c
+++ b/src/ipa.c
@@ -97,6 +97,11 @@
 	return msg;
 }
 
+struct msgb *osmo_ipa_ext_msg_alloc(int headroom)
+{
+	return osmo_ipa_msg_alloc(sizeof (struct ipa_head_ext) + headroom);
+}
+
 void osmo_ipa_msg_push_header(struct msgb *msg, uint8_t proto)
 {
 	struct ipa_head *hh;

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