[PATCH 2.6.20] isdn-eicon: Use ARRAY_SIZE macro when appropriate

["Ahmed S. Darwish" <darwish.07@gmail.com>]

Hi all,

A patch to use ARRAY_SIZE macro already defined in kernel.h

Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
---
Also remove the macro 
`#define DIM(array)  (sizeof (array)/sizeof ((array)[0]))'
that reimplements ARRAY_SIZE. Encourage new code to use ARRAY_SIZE ;).

 debug.c    |   30 +++++++++++++++---------------
 message.c  |   23 +++++++++++------------
 platform.h |    4 ----
 3 files changed, 26 insertions(+), 31 deletions(-)

diff --git a/drivers/isdn/hardware/eicon/debug.c b/drivers/isdn/hardware/eicon/debug.c
index d835e74..0db9cc6 100644
--- a/drivers/isdn/hardware/eicon/debug.c
+++ b/drivers/isdn/hardware/eicon/debug.c
@@ -287,7 +287,7 @@ void* diva_maint_finit (void) {
   }
   external_dbg_queue = 0;
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].pmem) {
       diva_os_free (0, clients[i].pmem);
     }
@@ -391,7 +391,7 @@ static void DI_register (void *arg) {
 
   diva_os_enter_spin_lock (&dbg_q_lock, &old_irql, "register");
 
-  for (id = 1; id < (sizeof(clients)/sizeof(clients[0])); id++) {
+  for (id = 1; id < ARRAY_SIZE(clients); id++) {
     if (clients[id].hDbg == hDbg) {
       /*
         driver already registered
@@ -494,7 +494,7 @@ static void DI_deregister (pDbgHandle hDbg) {
   diva_os_enter_spin_lock (&dbg_adapter_lock, &old_irql1, "read");
   diva_os_enter_spin_lock (&dbg_q_lock, &old_irql, "read");
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].hDbg == hDbg) {
       diva_dbg_entry_head_t* pmsg;
       char tmp[256];
@@ -736,7 +736,7 @@ int diva_get_driver_info (dword id, byte* data, int data_length) {
   int to_copy;
 
   if (!data || !id || (data_length < 17) ||
-      (id >= (sizeof(clients)/sizeof(clients[0])))) {
+      (id >= ARRAY_SIZE(clients))) {
     return (-1);
   }
 
@@ -786,7 +786,7 @@ int diva_get_driver_dbg_mask (dword id, byte* data) {
   diva_os_spin_lock_magic_t old_irql;
   int ret = -1;
 
-  if (!data || !id || (id >= (sizeof(clients)/sizeof(clients[0])))) {
+  if (!data || !id || (id >= ARRAY_SIZE(clients))) {
     return (-1);
   }
   diva_os_enter_spin_lock (&dbg_q_lock, &old_irql, "driver info");
@@ -809,7 +809,7 @@ int diva_set_driver_dbg_mask (dword id, dword mask) {
   int ret = -1;
   
 
-  if (!id || (id >= (sizeof(clients)/sizeof(clients[0])))) {
+  if (!id || (id >= ARRAY_SIZE(clients))) {
     return (-1);
   }
 
@@ -887,7 +887,7 @@ void diva_mnt_add_xdi_adapter (const DESCRIPTOR* d) {
   diva_os_enter_spin_lock (&dbg_adapter_lock, &old_irql1, "register");
   diva_os_enter_spin_lock (&dbg_q_lock, &old_irql, "register");
 
-  for (id = 1; id < (sizeof(clients)/sizeof(clients[0])); id++) {
+  for (id = 1; id < ARRAY_SIZE(clients); id++) {
     if (clients[id].hDbg && (clients[id].request == d->request)) {
       diva_os_leave_spin_lock (&dbg_q_lock, &old_irql, "register");
       diva_os_leave_spin_lock (&dbg_adapter_lock, &old_irql1, "register");
@@ -1037,7 +1037,7 @@ void diva_mnt_remove_xdi_adapter (const DESCRIPTOR* d) {
   diva_os_enter_spin_lock (&dbg_adapter_lock, &old_irql1, "read");
   diva_os_enter_spin_lock (&dbg_q_lock, &old_irql, "read");
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].hDbg && (clients[i].request == d->request)) {
       diva_dbg_entry_head_t* pmsg;
       char tmp[256];
@@ -1115,7 +1115,7 @@ void diva_mnt_remove_xdi_adapter (const DESCRIPTOR* d) {
 void* SuperTraceOpenAdapter   (int AdapterNumber) {
   int i;
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].hDbg && clients[i].request && (clients[i].logical == AdapterNumber)) {
       return (&clients[i]);
     }
@@ -1508,7 +1508,7 @@ static void diva_maint_state_change_notify (void* user_context,
 					int ch = TraceFilterChannel;
 					int id = TraceFilterIdent;
 
-					if ((id >= 0) && (ch >= 0) && (id < sizeof(clients)/sizeof(clients[0])) &&
+					if ((id >= 0) && (ch >= 0) && (id < ARRAY_SIZE(clients)) &&
 						(clients[id].Dbg.id == (byte)id) && (clients[id].pIdiLib == hLib)) {
 						if (ch != (int)modem->ChannelNumber) {
 							break;
@@ -1555,7 +1555,7 @@ static void diva_maint_state_change_notify (void* user_context,
 					int ch = TraceFilterChannel;
 					int id = TraceFilterIdent;
 
-					if ((id >= 0) && (ch >= 0) && (id < sizeof(clients)/sizeof(clients[0])) &&
+					if ((id >= 0) && (ch >= 0) && (id < ARRAY_SIZE(clients)) &&
 						(clients[id].Dbg.id == (byte)id) && (clients[id].pIdiLib == hLib)) {
 						if (ch != (int)fax->ChannelNumber) {
 							break;
@@ -1803,7 +1803,7 @@ static void diva_maint_trace_notify (void* user_context,
   /*
     Selective trace
     */
-  if ((id >= 0) && (ch >= 0) && (id < sizeof(clients)/sizeof(clients[0])) &&
+  if ((id >= 0) && (ch >= 0) && (id < ARRAY_SIZE(clients)) &&
       (clients[id].Dbg.id == (byte)id) && (clients[id].pIdiLib == hLib)) {
     const char* p = NULL;
     int ch_value = -1;
@@ -1925,7 +1925,7 @@ int diva_mnt_shutdown_xdi_adapters (void) {
   byte * pmem;
 
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     pmem = NULL;
 
     diva_os_enter_spin_lock (&dbg_adapter_lock, &old_irql1, "unload");
@@ -2006,7 +2006,7 @@ int diva_set_trace_filter (int filter_length, const char* filter) {
 
   on = (TraceFilter[0] == 0);
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].hDbg && clients[i].pIdiLib && clients[i].request) {
       client_b_on    = on && ((clients[i].hDbg->dbgMask & DIVA_MGT_DBG_IFC_BCHANNEL) != 0);
       client_atap_on = on && ((clients[i].hDbg->dbgMask & DIVA_MGT_DBG_IFC_AUDIO)    != 0);
@@ -2017,7 +2017,7 @@ int diva_set_trace_filter (int filter_length, const char* filter) {
     }
   }
 
-  for (i = 1; i < (sizeof(clients)/sizeof(clients[0])); i++) {
+  for (i = 1; i < ARRAY_SIZE(clients); i++) {
     if (clients[i].hDbg && clients[i].pIdiLib && clients[i].request && clients[i].request_pending) {
       diva_os_leave_spin_lock (&dbg_q_lock, &old_irql, "write_filter");
       clients[i].request_pending = 0;
diff --git a/drivers/isdn/hardware/eicon/message.c b/drivers/isdn/hardware/eicon/message.c
index f9b00f1..4e29d38 100644
--- a/drivers/isdn/hardware/eicon/message.c
+++ b/drivers/isdn/hardware/eicon/message.c
@@ -6812,7 +6812,7 @@ void nl_ind(PLCI   * plci)
         }
         if (((plci->NL.Ind & 0x0f) == N_DISC) || ((plci->NL.Ind & 0x0f) == N_DISC_ACK))
         {
-          if (((T30_INFO   *)plci->NL.RBuffer->P)->code < sizeof(fax_info) / sizeof(fax_info[0]))
+	  if (((T30_INFO   *)plci->NL.RBuffer->P)->code < ARRAY_SIZE(fax_info))
             info = fax_info[((T30_INFO   *)plci->NL.RBuffer->P)->code];
           else
             info = _FAX_PROTOCOL_ERROR;
@@ -9564,7 +9564,7 @@ static struct
 
 };
 
-#define DTMF_DIGIT_MAP_ENTRIES (sizeof(dtmf_digit_map) / sizeof(dtmf_digit_map[0]))
+#define DTMF_DIGIT_MAP_ENTRIES ARRAY_SIZE(dtmf_digit_map)
 
 
 static void dtmf_enable_receiver (PLCI   *plci, byte enable_mask)
@@ -10069,8 +10069,7 @@ static byte dtmf_request (dword Id, word Number, DIVA_CAPI_ADAPTER   *a, PLCI
           PUT_WORD (&result[1], DTMF_INCORRECT_DIGIT);
           break;
         }
-        if (plci->dtmf_send_requests >=
-          sizeof(plci->dtmf_msg_number_queue) / sizeof(plci->dtmf_msg_number_queue[0]))
+        if (plci->dtmf_send_requests >= ARRAY_SIZE(plci->dtmf_msg_number_queue))
         {
           dbug (1, dprintf ("[%06lx] %s,%d: DTMF request overrun",
             UnMapId (Id), (char   *)(FILE_), __LINE__));
@@ -11018,9 +11017,9 @@ static byte xconnect_write_coefs_process (dword Id, PLCI   *plci, byte Rc)
             li_config_table[i].coef_table[j] ^= xconnect_write_prog[n].mask << 4;
           }
           n++;
-        } while ((n < sizeof(xconnect_write_prog) / sizeof(xconnect_write_prog[0]))
+        } while ((n < ARRAY_SIZE(xconnect_write_prog))
           && ((p - plci->internal_req_buffer) + 16 < INTERNAL_REQ_BUFFER_SIZE));
-        if (n == sizeof(xconnect_write_prog) / sizeof(xconnect_write_prog[0]))
+        if (n == ARRAY_SIZE(xconnect_write_prog))
         {
           do
           {
@@ -11090,7 +11089,7 @@ static byte xconnect_write_coefs_process (dword Id, PLCI   *plci, byte Rc)
             ch_map[j+1] = (byte)(j+1);
           }
         }
-        for (n = 0; n < sizeof(mixer_write_prog_bri) / sizeof(mixer_write_prog_bri[0]); n++)
+        for (n = 0; n < ARRAY_SIZE(mixer_write_prog_bri); n++)
         {
           i = a->li_base + ch_map[mixer_write_prog_bri[n].to_ch];
           j = a->li_base + ch_map[mixer_write_prog_bri[n].from_ch];
@@ -11140,7 +11139,7 @@ static byte xconnect_write_coefs_process (dword Id, PLCI   *plci, byte Rc)
           w |= MIXER_FEATURE_ENABLE_RX_DATA;
         *(p++) = (byte) w;
         *(p++) = (byte)(w >> 8);
-        for (n = 0; n < sizeof(mixer_write_prog_pri) / sizeof(mixer_write_prog_pri[0]); n++)
+        for (n = 0; n < ARRAY_SIZE(mixer_write_prog_pri); n++)
         {
           *(p++) = (byte)((plci->li_bchannel_id - 1) | mixer_write_prog_pri[n].line_flags);
           for (j = a->li_base; j < a->li_base + MIXER_CHANNELS_PRI; j++)
@@ -11196,7 +11195,7 @@ static byte xconnect_write_coefs_process (dword Id, PLCI   *plci, byte Rc)
             ch_map[j+1] = (byte)(j+1);
           }
         }
-        for (n = 0; n < sizeof(mixer_write_prog_bri) / sizeof(mixer_write_prog_bri[0]); n++)
+        for (n = 0; n < ARRAY_SIZE(mixer_write_prog_bri); n++)
         {
           i = a->li_base + ch_map[mixer_write_prog_bri[n].to_ch];
           j = a->li_base + ch_map[mixer_write_prog_bri[n].from_ch];
@@ -13178,7 +13177,7 @@ static void adv_voice_write_coefs (PLCI   *plci, word write_command)
         ch_map[j] = (byte)(j + (plci->li_bchannel_id - 1));
         ch_map[j+1] = (byte)(j + (2 - plci->li_bchannel_id));
       }
-      for (n = 0; n < sizeof(mixer_write_prog_bri) / sizeof(mixer_write_prog_bri[0]); n++)
+      for (n = 0; n < ARRAY_SIZE(mixer_write_prog_bri); n++)
       {
         i = a->li_base + ch_map[mixer_write_prog_bri[n].to_ch];
         j = a->li_base + ch_map[mixer_write_prog_bri[n].from_ch];
@@ -14603,7 +14602,7 @@ static void channel_request_xon (PLCI   * plci, byte ch) {
 
 static void channel_xmit_extended_xon (PLCI   * plci) {
   DIVA_CAPI_ADAPTER   * a;
-  int max_ch = sizeof(a->ch_flow_control)/sizeof(a->ch_flow_control[0]);
+  int max_ch = ARRAY_SIZE(a->ch_flow_control);
   int i, one_requested = 0;
 
   if ((!plci) || (!plci->Id) || ((a = plci->adapter) == 0)) {
@@ -14628,7 +14627,7 @@ static void channel_xmit_extended_xon (PLCI   * plci) {
   Try to xmit next X_ON
   */
 static int find_channel_with_pending_x_on (DIVA_CAPI_ADAPTER   * a, PLCI   * plci) {
-  int max_ch = sizeof(a->ch_flow_control)/sizeof(a->ch_flow_control[0]);
+  int max_ch = ARRAY_SIZE(a->ch_flow_control);
   int i;
 
   if (!(plci->adapter->manufacturer_features & MANUFACTURER_FEATURE_XONOFF_FLOW_CONTROL)) {
diff --git a/drivers/isdn/hardware/eicon/platform.h b/drivers/isdn/hardware/eicon/platform.h
index 2444811..9ddae43 100644
--- a/drivers/isdn/hardware/eicon/platform.h
+++ b/drivers/isdn/hardware/eicon/platform.h
@@ -131,10 +131,6 @@
 #define DIVA_OS_MEM_DETACH_CONFIG(a, x)	do { } while(0)
 #define DIVA_OS_MEM_DETACH_CONTROL(a, x)	do { } while(0)
 
-#if !defined(DIM)
-#define DIM(array)  (sizeof (array)/sizeof ((array)[0]))
-#endif
-
 #define DIVA_INVALID_FILE_HANDLE  ((dword)(-1))
 
 #define DIVAS_CONTAINING_RECORD(address, type, field) \

-- 
Ahmed S. Darwish
http://darwish-07.blogspot.com