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sigtran: Constify osmo_ss7_instance ptr in several APIs

Change-Id: I3be025d4a26d12aa305efe0bf2b3955ca5af3da1
---
M include/osmocom/sigtran/osmo_ss7.h
M src/osmo_ss7.c
2 files changed, 6 insertions(+), 6 deletions(-)

git pull ssh://gerrit.osmocom.org:29418/libosmo-sigtran refs/changes/62/38662/1

diff --git a/include/osmocom/sigtran/osmo_ss7.h b/include/osmocom/sigtran/osmo_ss7.h
index 9da94b3..2babed9 100644
--- a/include/osmocom/sigtran/osmo_ss7.h
+++ b/include/osmocom/sigtran/osmo_ss7.h
@@ -25,9 +25,9 @@
 int osmo_ss7_init(void);
 int osmo_ss7_find_free_rctx(struct osmo_ss7_instance *inst);
 
-bool osmo_ss7_pc_is_local(struct osmo_ss7_instance *inst, uint32_t pc);
-int osmo_ss7_pointcode_parse(struct osmo_ss7_instance *inst, const char *str);
-int osmo_ss7_pointcode_parse_mask_or_len(struct osmo_ss7_instance *inst, const char *in);
+bool osmo_ss7_pc_is_local(const struct osmo_ss7_instance *inst, uint32_t pc);
+int osmo_ss7_pointcode_parse(const struct osmo_ss7_instance *inst, const char *str);
+int osmo_ss7_pointcode_parse_mask_or_len(const struct osmo_ss7_instance *inst, const char *in);
 const char *osmo_ss7_pointcode_print_buf(char *buf, size_t buf_len, const struct osmo_ss7_instance *inst, uint32_t pc);
 const char *osmo_ss7_pointcode_print(const struct osmo_ss7_instance *inst, uint32_t pc);
 const char *osmo_ss7_pointcode_print2(const struct osmo_ss7_instance *inst, uint32_t pc);
diff --git a/src/osmo_ss7.c b/src/osmo_ss7.c
index 0ed43ff..f82e28e 100644
--- a/src/osmo_ss7.c
+++ b/src/osmo_ss7.c
@@ -216,7 +216,7 @@
 
 /* parse a point code according to the structure configured for this
  * ss7_instance */
-int osmo_ss7_pointcode_parse(struct osmo_ss7_instance *inst, const char *str)
+int osmo_ss7_pointcode_parse(const struct osmo_ss7_instance *inst, const char *str)
 {
 	unsigned int component[3];
 	const struct osmo_ss7_pc_fmt *pc_fmt = inst ? &inst->cfg.pc_fmt : &default_pc_fmt;
@@ -288,7 +288,7 @@
 	return osmo_ss7_pointcode_print_buf(buf, sizeof(buf), inst, pc);
 }
 
-int osmo_ss7_pointcode_parse_mask_or_len(struct osmo_ss7_instance *inst, const char *in)
+int osmo_ss7_pointcode_parse_mask_or_len(const struct osmo_ss7_instance *inst, const char *in)
 {
 	unsigned int width = osmo_ss7_pc_width(inst ? &inst->cfg.pc_fmt : &default_pc_fmt);
 
@@ -696,7 +696,7 @@
 					    trans_proto, proto);
 }
 
-bool osmo_ss7_pc_is_local(struct osmo_ss7_instance *inst, uint32_t pc)
+bool osmo_ss7_pc_is_local(const struct osmo_ss7_instance *inst, uint32_t pc)
 {
 	OSMO_ASSERT(ss7_initialized);
 	if (osmo_ss7_pc_is_valid(inst->cfg.primary_pc) && pc == inst->cfg.primary_pc)

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