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diff --git a/epan/dissectors/packet-gsm_rlcmac.c b/epan/dissectors/packet-gsm_rlcmac.c
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index e4eac08..7a783ef 100644
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--- a/epan/dissectors/packet-gsm_rlcmac.c
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+++ b/epan/dissectors/packet-gsm_rlcmac.c
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@@ -60,7 +60,7 @@
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 /* private typedefs */
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 typedef struct
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 {
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-   guint8 offset;
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+   gint   offset;
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    guint8 li;
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 }length_indicator_t;
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@@ -6737,10 +6737,11 @@ static const value_string gsm_rlcmac_t3192_vals[] = {
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   { 0, NULL}
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 };
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-static guint8 construct_gprs_data_segment_li_array(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint8 initial_offset, guint8 *li_count, length_indicator_t *li_array, guint64 *e)
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+static gint construct_gprs_data_segment_li_array(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint8 initial_offset, guint8 *li_count, length_indicator_t *li_array, guint64 *e)
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 {
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-    guint8 offset = initial_offset, li_array_size = *li_count;
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-	proto_item 	*item;
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+    gint        offset = initial_offset;
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+    guint8      li_array_size = *li_count;
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+    proto_item  *item;
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     *li_count = 0;
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     while(*e == 0)
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@@ -6763,15 +6764,15 @@ static guint8 construct_gprs_data_segment_li_array(tvbuff_t *tvb, proto_tree *tr
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     return (offset - initial_offset);
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 }
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-static guint8 construct_egprs_data_segment_li_array(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint8 initial_offset, guint8 *li_count, length_indicator_t *li_array, guint64 *e)
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+static gint construct_egprs_data_segment_li_array(tvbuff_t *tvb, proto_tree *tree, packet_info *pinfo, guint8 initial_offset, guint8 *li_count, length_indicator_t *li_array, guint64 *e)
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 {
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-    guint8 offset = initial_offset, li_array_size = *li_count;
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-	proto_item 	*item;
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+    gint        offset = initial_offset;
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+    guint8      li_array_size = *li_count;
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+    proto_item  *item;
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     *li_count = 0;
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     while(*e == 0)
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     {
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-        DISSECTOR_ASSERT(*li_count < li_array_size);
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         item = proto_tree_add_bits_item(tree, hf_li, tvb, offset * 8, 7, ENC_BIG_ENDIAN);
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         proto_tree_add_bits_ret_val(tree, hf_e, tvb, (offset * 8) + 7, 1, e, ENC_BIG_ENDIAN);
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         if(*li_count < li_array_size)
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@@ -7466,7 +7467,7 @@ dissect_ul_gprs_block(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, RlcMa
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    csnStream_t      ar;
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    guint8 payload_type = tvb_get_bits8(tvb, 0, 2);
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    guint16 bit_length = tvb_length(tvb) * 8;
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-   guint16 bit_offset = 0;
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+   gint bit_offset = 0;
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    length_indicator_t li_array[10];
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    guint8 li_count = array_length(li_array);
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@@ -7595,7 +7596,7 @@ dissect_egprs_ul_data_block(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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 {
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    proto_item   *ti = NULL;
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    proto_tree *data_tree = NULL;
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-   guint8 offset = 0;
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+   gint offset = 0;
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    length_indicator_t li_array[20];
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    guint8 li_count = array_length(li_array);
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    guint64 e, tlli_i;
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@@ -7655,7 +7656,8 @@ dissect_egprs_dl_data_block(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
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 {
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     proto_item      *ti = NULL;
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     proto_tree      *data_tree = NULL;
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-    guint16 offset = 0, block_number;
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+    gint offset = 0;
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+    guint16 block_number;
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     length_indicator_t li_array[20];
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     guint8 li_count = array_length(li_array);
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     guint64 fbi, e;