yaffs direct: Add file descriptor layer in handle management

[yaffs2.git] / yaffs_tagscompat.c

diff --git a/yaffs_tagscompat.c b/yaffs_tagscompat.c
index 3a9a157e7e2470c44252cb338363347db7b04569..a35e0f312171d236549aa134ff4ff2bdee15d892 100644 (file)
--- a/yaffs_tagscompat.c
+++ b/yaffs_tagscompat.c
@@ -19,31 +19,6 @@
 
 static void yaffs_handle_rd_data_error(struct yaffs_dev *dev, int nand_chunk);
 
-static const char yaffs_count_bits_table[256] = {
-       0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4,
-       1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-       1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-       1, 2, 2, 3, 2, 3, 3, 4, 2, 3, 3, 4, 3, 4, 4, 5,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-       2, 3, 3, 4, 3, 4, 4, 5, 3, 4, 4, 5, 4, 5, 5, 6,
-       3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-       3, 4, 4, 5, 4, 5, 5, 6, 4, 5, 5, 6, 5, 6, 6, 7,
-       4, 5, 5, 6, 5, 6, 6, 7, 5, 6, 6, 7, 6, 7, 7, 8
-};
-
-int yaffs_count_bits(u8 x)
-{
-       int ret_val;
-       ret_val = yaffs_count_bits_table[x];
-       return ret_val;
-}
 
 /********** Tags ECC calculations  *********/
 
@@ -370,7 +345,7 @@ int yaffs_tags_compat_rd(struct yaffs_dev *dev,
                if (ext_tags) {
 
                        int deleted =
-                           (yaffs_count_bits(spare.page_status) < 7) ? 1 : 0;
+                           (hweight8(spare.page_status) < 7) ? 1 : 0;
 
                        ext_tags->is_deleted = deleted;
                        ext_tags->ecc_result = ecc_result;
@@ -443,7 +418,7 @@ int yaffs_tags_compat_query_block(struct yaffs_dev *dev,
        yaffs_rd_chunk_nand(dev, block_no * dev->param.chunks_per_block + 1,
                            NULL, &spare1, &dummy, 1);
 
-       if (yaffs_count_bits(spare0.block_status & spare1.block_status) < 7)
+       if (hweight8(spare0.block_status & spare1.block_status) < 7)
                *state = YAFFS_BLOCK_STATE_DEAD;
        else if (memcmp(&spare_ff, &spare0, sizeof(spare_ff)) == 0)
                *state = YAFFS_BLOCK_STATE_EMPTY;