From: Michael Jeanson <mjeanson@efficios.com>
Date: Thu, 20 Jul 2017 21:33:46 +0000 (-0400)
Subject: Fix: assignment from incompatible pointer type warnings
X-Git-Tag: v0.11.0~54
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=5592d04940700ff2bb06307660e28e47fad0606b;p=userspace-rcu.git

Fix: assignment from incompatible pointer type warnings

On some platforms, mmap returns a caddr_t pointer which generates
compiler warnings, cast to the proper pointer type to eliminate them.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/src/urcu-bp.c b/src/urcu-bp.c
index 81bb91a..c0fac83 100644
--- a/src/urcu-bp.c
+++ b/src/urcu-bp.c
@@ -374,7 +374,8 @@ void expand_arena(struct registry_arena *arena)
 			sizeof(struct registry_chunk)
 			+ sizeof(struct rcu_reader));
 		new_chunk_len = ARENA_INIT_ALLOC;
-		new_chunk = mmap(NULL, new_chunk_len,
+		new_chunk = (struct registry_chunk *) mmap(NULL,
+			new_chunk_len,
 			PROT_READ | PROT_WRITE,
 			MAP_ANONYMOUS | MAP_PRIVATE,
 			-1, 0);
@@ -408,7 +409,8 @@ void expand_arena(struct registry_arena *arena)
 	}
 
 	/* Remap did not succeed, we need to add a new chunk. */
-	new_chunk = mmap(NULL, new_chunk_len,
+	new_chunk = (struct registry_chunk *) mmap(NULL,
+		new_chunk_len,
 		PROT_READ | PROT_WRITE,
 		MAP_ANONYMOUS | MAP_PRIVATE,
 		-1, 0);
@@ -625,7 +627,7 @@ void rcu_bp_exit(void)
 
 		cds_list_for_each_entry_safe(chunk, tmp,
 				&registry_arena.chunk_list, node) {
-			munmap(chunk, chunk->data_len
+			munmap((void *) chunk, chunk->data_len
 					+ sizeof(struct registry_chunk));
 		}
 		CDS_INIT_LIST_HEAD(&registry_arena.chunk_list);