cmd_mii: localize & constify local funcs/data

No need for these structures to be writable or global.

While we're here, also drop local versions of the ARRAY_SIZE macro.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

common/cmd_mii.c

@@ -34,7 +34,7 @@ typedef struct _MII_reg_desc_t {
 	char * name;
 } MII_reg_desc_t;
 
-MII_reg_desc_t reg_0_5_desc_tbl[] = {
+static const MII_reg_desc_t reg_0_5_desc_tbl[] = {
 	{ 0,   "PHY control register"                },
 	{ 1,   "PHY status register"                 },
 	{ 2,   "PHY ID 1 register"                   },
@@ -50,7 +50,7 @@ typedef struct _MII_field_desc_t {
 	char * name;
 } MII_field_desc_t;
 
-MII_field_desc_t reg_0_desc_tbl[] = {
+static const MII_field_desc_t reg_0_desc_tbl[] = {
 	{ 15, 15, 0x01, "reset"                        },
 	{ 14, 14, 0x01, "loopback"                     },
 	{ 13,  6, 0x81, "speed selection"              }, /* special */
@@ -63,7 +63,7 @@ MII_field_desc_t reg_0_desc_tbl[] = {
 	{  5,  0, 0x3f, "(reserved)"                   }
 };
 
-MII_field_desc_t reg_1_desc_tbl[] = {
+static const MII_field_desc_t reg_1_desc_tbl[] = {
 	{ 15, 15, 0x01, "100BASE-T4 able"              },
 	{ 14, 14, 0x01, "100BASE-X  full duplex able"  },
 	{ 13, 13, 0x01, "100BASE-X  half duplex able"  },
@@ -82,17 +82,17 @@ MII_field_desc_t reg_1_desc_tbl[] = {
 	{  0,  0, 0x01, "extended capabilities"        },
 };
 
-MII_field_desc_t reg_2_desc_tbl[] = {
+static const MII_field_desc_t reg_2_desc_tbl[] = {
 	{ 15,  0, 0xffff, "OUI portion"                },
 };
 
-MII_field_desc_t reg_3_desc_tbl[] = {
+static const MII_field_desc_t reg_3_desc_tbl[] = {
 	{ 15, 10, 0x3f, "OUI portion"                },
 	{  9,  4, 0x3f, "manufacturer part number"   },
 	{  3,  0, 0x0f, "manufacturer rev. number"   },
 };
 
-MII_field_desc_t reg_4_desc_tbl[] = {
+static const MII_field_desc_t reg_4_desc_tbl[] = {
 	{ 15, 15, 0x01, "next page able"               },
 	{ 14, 14, 0x01, "reserved"                     },
 	{ 13, 13, 0x01, "remote fault"                 },
@@ -107,7 +107,7 @@ MII_field_desc_t reg_4_desc_tbl[] = {
 	{  4,  0, 0x1f, "xxx to do"                    },
 };
 
-MII_field_desc_t reg_5_desc_tbl[] = {
+static const MII_field_desc_t reg_5_desc_tbl[] = {
 	{ 15, 15, 0x01, "next page able"               },
 	{ 14, 14, 0x01, "acknowledge"                  },
 	{ 13, 13, 0x01, "remote fault"                 },
@@ -121,39 +121,31 @@ MII_field_desc_t reg_5_desc_tbl[] = {
 	{  5,  5, 0x01, "10BASE-T able"                },
 	{  4,  0, 0x1f, "xxx to do"                    },
 };
-
-#define DESC0LEN (sizeof(reg_0_desc_tbl)/sizeof(reg_0_desc_tbl[0]))
-#define DESC1LEN (sizeof(reg_1_desc_tbl)/sizeof(reg_1_desc_tbl[0]))
-#define DESC2LEN (sizeof(reg_2_desc_tbl)/sizeof(reg_2_desc_tbl[0]))
-#define DESC3LEN (sizeof(reg_3_desc_tbl)/sizeof(reg_3_desc_tbl[0]))
-#define DESC4LEN (sizeof(reg_4_desc_tbl)/sizeof(reg_4_desc_tbl[0]))
-#define DESC5LEN (sizeof(reg_5_desc_tbl)/sizeof(reg_5_desc_tbl[0]))
-
 typedef struct _MII_field_desc_and_len_t {
-	MII_field_desc_t * pdesc;
+	const MII_field_desc_t *pdesc;
 	ushort len;
 } MII_field_desc_and_len_t;
 
-MII_field_desc_and_len_t desc_and_len_tbl[] = {
-	{ reg_0_desc_tbl, DESC0LEN },
-	{ reg_1_desc_tbl, DESC1LEN },
-	{ reg_2_desc_tbl, DESC2LEN },
-	{ reg_3_desc_tbl, DESC3LEN },
-	{ reg_4_desc_tbl, DESC4LEN },
-	{ reg_5_desc_tbl, DESC5LEN },
+static const MII_field_desc_and_len_t desc_and_len_tbl[] = {
+	{ reg_0_desc_tbl, ARRAY_SIZE(reg_0_desc_tbl)   },
+	{ reg_1_desc_tbl, ARRAY_SIZE(reg_1_desc_tbl)   },
+	{ reg_2_desc_tbl, ARRAY_SIZE(reg_2_desc_tbl)   },
+	{ reg_3_desc_tbl, ARRAY_SIZE(reg_3_desc_tbl)   },
+	{ reg_4_desc_tbl, ARRAY_SIZE(reg_4_desc_tbl)   },
+	{ reg_5_desc_tbl, ARRAY_SIZE(reg_5_desc_tbl)   },
 };
 
 static void dump_reg(
 	ushort             regval,
-	MII_reg_desc_t   * prd,
-	MII_field_desc_and_len_t * pdl);
+	const MII_reg_desc_t *prd,
+	const MII_field_desc_and_len_t *pdl);
 
 static int special_field(
 	ushort regno,
-	MII_field_desc_t * pdesc,
+	const MII_field_desc_t *pdesc,
 	ushort regval);
 
-void MII_dump_0_to_5(
+static void MII_dump_0_to_5(
 	ushort regvals[6],
 	uchar reglo,
 	uchar reghi)
@@ -169,12 +161,12 @@ void MII_dump_0_to_5(
 
 static void dump_reg(
 	ushort             regval,
-	MII_reg_desc_t   * prd,
-	MII_field_desc_and_len_t * pdl)
+	const MII_reg_desc_t *prd,
+	const MII_field_desc_and_len_t *pdl)
 {
 	ulong i;
 	ushort mask_in_place;
-	MII_field_desc_t * pdesc;
+	const MII_field_desc_t *pdesc;
 
 	printf("%u.     (%04hx)                 -- %s --\n",
 		prd->regno, regval, prd->name);
@@ -217,7 +209,7 @@ static void dump_reg(
 
 static int special_field(
 	ushort regno,
-	MII_field_desc_t * pdesc,
+	const MII_field_desc_t *pdesc,
 	ushort regval)
 {
 	if ((regno == 0) && (pdesc->lo == 6)) {
@@ -268,12 +260,12 @@ static int special_field(
 	return 0;
 }
 
-char last_op[2];
-uint last_data;
-uint last_addr_lo;
-uint last_addr_hi;
-uint last_reg_lo;
-uint last_reg_hi;
+static char last_op[2];
+static uint last_data;
+static uint last_addr_lo;
+static uint last_addr_hi;
+static uint last_reg_lo;
+static uint last_reg_hi;
 
 static void extract_range(
 	char * input,
@@ -292,7 +284,7 @@ static void extract_range(
 }
 
 /* ---------------------------------------------------------------- */
-int do_mii (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static int do_mii(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	char		op[2];
 	unsigned char	addrlo, addrhi, reglo, reghi;