From: Emilio G. Cota <cota@braap.org>
Date: Thu, 19 Dec 2013 06:00:15 +0000 (-0500)
Subject: bitmap: add endianness casts
X-Git-Url: http://git.ozlabs.org/?p=ccan;a=commitdiff_plain;h=9273220c47005235da7cfed1221e13dd19065093;hp=8f6c40bce722642ff7e253a675b8ce6cd7e7a091

bitmap: add endianness casts

sparse yells at us when it realises we are implicitly casting an
endian type (big endian) to a plain unsigned long.

Get rid of this warning by telling sparse that we know what
we are doing.

Signed-off-by: Emilio G. Cota <cota@braap.org>
---

diff --git a/ccan/bitmap/bitmap.h b/ccan/bitmap/bitmap.h
index f43449d7..50086c06 100644
--- a/ccan/bitmap/bitmap.h
+++ b/ccan/bitmap/bitmap.h
@@ -38,9 +38,9 @@ static inline bitmap *bitmap_alloc(int nbits)
 static inline bitmap_word bitmap_bswap(bitmap_word w)
 {
 	if (BITMAP_WORD_BITS == 32)
-		return cpu_to_be32(w);
+		return (ENDIAN_CAST bitmap_word)cpu_to_be32(w);
 	else if (BITMAP_WORD_BITS == 64)
-		return cpu_to_be64(w);
+		return (ENDIAN_CAST bitmap_word)cpu_to_be64(w);
 }
 
 #define BITMAP_WORD(_bm, _n)	((_bm)[(_n) / BITMAP_WORD_BITS].w)