lzx_compress.c: minor comment fix

[wimlib] / src / lzx_compress.c

diff --git a/src/lzx_compress.c b/src/lzx_compress.c
index f6b29b3009686b9eb3e324e1ee24fb542e7f6d8f..520c07e33572081b7756a9c3622733522569817a 100644 (file)
--- a/src/lzx_compress.c
+++ b/src/lzx_compress.c
@@ -232,9 +232,10 @@ struct lzx_sequence {
        u16 adjusted_length;
 
        /* If bit 31 is clear, then this field contains the match header in bits
-        * 0-8 and the match offset minus LZX_OFFSET_ADJUSTMENT in bits 9-30.
-        * Otherwise, this sequence's literal run was the last literal run in
-        * the block, so there is no match that follows it.  */
+        * 0-8, and either the match offset plus LZX_OFFSET_ADJUSTMENT or a
+        * recent offset code in bits 9-30.  Otherwise (if bit 31 is set), this
+        * sequence's literal run was the last literal run in the block, so
+        * there is no match that follows it.  */
        u32 adjusted_offset_and_match_hdr;
 };
 
@@ -331,15 +332,6 @@ lzx_lru_queue_push(struct lzx_lru_queue queue, u32 offset)
        };
 }
 
-/* Pop a match offset off the front (most recently used) end of the queue.  */
-static inline u32
-lzx_lru_queue_pop(struct lzx_lru_queue *queue_p)
-{
-       u32 offset = queue_p->R & LZX_QUEUE64_OFFSET_MASK;
-       queue_p->R >>= LZX_QUEUE64_OFFSET_SHIFT;
-       return offset;
-}
-
 /* Swap a match offset to the front of the queue.  */
 static inline struct lzx_lru_queue
 lzx_lru_queue_swap(struct lzx_lru_queue queue, unsigned idx)