src/: Remove g_ prefixes and _g suffixes from variables

These were often used to distinguish CAR_GLOBAL variables that weren't
directly usable. Since we're getting rid of this special case, also get
rid of the marker.

This change was created using coccinelle and the following script:
	@match@
	type T;
	identifier old =~ "^(g_.*|.*_g)$";
	@@
	old

	@script:python global_marker@
	old << match.old;
	new;
	@@
	new = old
	if old[0:2] == "g_":
	  new = new[2:]

	if new[-2:] == "_g":
	  new = new[:-2]

	coccinelle.new = new

	@@
	identifier match.old, global_marker.new;
	@@
	- old
	+ new

	@@
	type T;
	identifier match.old, global_marker.new;
	@@
	- T old;
	+ T new;

	@@
	type T;
	identifier match.old, global_marker.new;
	@@
	- T old
	+ T new
	 = ...;

There were some manual fixups: Some code still uses the global/local
variable naming scheme, so keep g_* there, and some variable names
weren't completely rewritten.

Change-Id: I4936ff9780a0d3ed9b8b539772bc48887f8d5eed
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37358
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>

3 files changed, 65 insertions, 65 deletions

diff --git a/src/drivers/i2c/tpm/cr50.c b/src/drivers/i2c/tpm/cr50.c
index f386dacb0b..8ea544d0db 100644
--- a/src/drivers/i2c/tpm/cr50.c
+++ b/src/drivers/i2c/tpm/cr50.c
@@ -54,7 +54,7 @@ struct tpm_inf_dev {
 	uint8_t buf[CR50_MAX_BUFSIZE + sizeof(uint8_t)];
 };
 
-static struct tpm_inf_dev g_tpm_dev;
+static struct tpm_inf_dev tpm_dev;
 
 __weak int tis_plat_irq_status(void)
 {
@@ -101,14 +101,14 @@ static int cr50_i2c_wait_tpm_ready(struct tpm_chip *chip)
 static int cr50_i2c_read(struct tpm_chip *chip, uint8_t addr,
 			 uint8_t *buffer, size_t len)
 {
-	if (g_tpm_dev.addr == 0)
+	if (tpm_dev.addr == 0)
 		return -1;
 
 	/* Clear interrupt before starting transaction */
 	tis_plat_irq_status();
 
 	/* Send the register address byte to the TPM */
-	if (i2c_write_raw(g_tpm_dev.bus, g_tpm_dev.addr, &addr, 1)) {
+	if (i2c_write_raw(tpm_dev.bus, tpm_dev.addr, &addr, 1)) {
 		printk(BIOS_ERR, "%s: Address write failed\n", __func__);
 		return -1;
 	}
@@ -118,7 +118,7 @@ static int cr50_i2c_read(struct tpm_chip *chip, uint8_t addr,
 		return -1;
 
 	/* Read response data from the TPM */
-	if (i2c_read_raw(g_tpm_dev.bus, g_tpm_dev.addr, buffer, len)) {
+	if (i2c_read_raw(tpm_dev.bus, tpm_dev.addr, buffer, len)) {
 		printk(BIOS_ERR, "%s: Read response failed\n", __func__);
 		return -1;
 	}
@@ -143,20 +143,20 @@ static int cr50_i2c_read(struct tpm_chip *chip, uint8_t addr,
 static int cr50_i2c_write(struct tpm_chip *chip,
 			  uint8_t addr, uint8_t *buffer, size_t len)
 {
-	if (g_tpm_dev.addr == 0)
+	if (tpm_dev.addr == 0)
 		return -1;
 	if (len > CR50_MAX_BUFSIZE)
 		return -1;
 
 	/* Prepend the 'register address' to the buffer */
-	g_tpm_dev.buf[0] = addr;
-	memcpy(g_tpm_dev.buf + 1, buffer, len);
+	tpm_dev.buf[0] = addr;
+	memcpy(tpm_dev.buf + 1, buffer, len);
 
 	/* Clear interrupt before starting transaction */
 	tis_plat_irq_status();
 
 	/* Send write request buffer with address */
-	if (i2c_write_raw(g_tpm_dev.bus, g_tpm_dev.addr, g_tpm_dev.buf, len + 1)) {
+	if (i2c_write_raw(tpm_dev.bus, tpm_dev.addr, tpm_dev.buf, len + 1)) {
 		printk(BIOS_ERR, "%s: Error writing to TPM\n", __func__);
 		return -1;
 	}
@@ -494,8 +494,8 @@ int tpm_vendor_init(struct tpm_chip *chip, unsigned int bus, uint32_t dev_addr)
 		return -1;
 	}
 
-	g_tpm_dev.bus = bus;
-	g_tpm_dev.addr = dev_addr;
+	tpm_dev.bus = bus;
+	tpm_dev.addr = dev_addr;
 
 	cr50_vendor_init(chip);
 
diff --git a/src/drivers/i2c/tpm/tis.c b/src/drivers/i2c/tpm/tis.c
index d791a56af5..8b07bb78dd 100644
--- a/src/drivers/i2c/tpm/tis.c
+++ b/src/drivers/i2c/tpm/tis.c
@@ -26,7 +26,7 @@
 #include "tpm.h"
 
 /* global structure for tpm chip data */
-static struct tpm_chip g_chip;
+static struct tpm_chip chip;
 
 #define TPM_CMD_COUNT_BYTE 2
 #define TPM_CMD_ORDINAL_BYTE 6
@@ -35,15 +35,15 @@ int tis_open(void)
 {
 	int rc;
 
-	if (g_chip.is_open) {
+	if (chip.is_open) {
 		printk(BIOS_DEBUG, "tis_open() called twice.\n");
 		return -1;
 	}
 
-	rc = tpm_vendor_init(&g_chip, CONFIG_DRIVER_TPM_I2C_BUS,
+	rc = tpm_vendor_init(&chip, CONFIG_DRIVER_TPM_I2C_BUS,
 			     CONFIG_DRIVER_TPM_I2C_ADDR);
 	if (rc < 0)
-		g_chip.is_open = 0;
+		chip.is_open = 0;
 
 	if (rc)
 		return -1;
@@ -53,9 +53,9 @@ int tis_open(void)
 
 int tis_close(void)
 {
-	if (g_chip.is_open) {
-		tpm_vendor_cleanup(&g_chip);
-		g_chip.is_open = 0;
+	if (chip.is_open) {
+		tpm_vendor_cleanup(&chip);
+		chip.is_open = 0;
 	}
 
 	return 0;
@@ -76,7 +76,7 @@ static ssize_t tpm_transmit(const uint8_t *sbuf, size_t sbufsiz, void *rbuf,
 	memcpy(&count, sbuf + TPM_CMD_COUNT_BYTE, sizeof(count));
 	count = be32_to_cpu(count);
 
-	if (!g_chip.vendor.send || !g_chip.vendor.status || !g_chip.vendor.cancel)
+	if (!chip.vendor.send || !chip.vendor.status || !chip.vendor.cancel)
 		return -1;
 
 	if (count == 0) {
@@ -89,8 +89,8 @@ static ssize_t tpm_transmit(const uint8_t *sbuf, size_t sbufsiz, void *rbuf,
 		return -1;
 	}
 
-	ASSERT(g_chip.vendor.send);
-	rc = g_chip.vendor.send(&g_chip, (uint8_t *) sbuf, count);
+	ASSERT(chip.vendor.send);
+	rc = chip.vendor.send(&chip, (uint8_t *) sbuf, count);
 	if (rc < 0) {
 		printk(BIOS_DEBUG, "tpm_transmit: tpm_send error\n");
 		goto out;
@@ -98,14 +98,14 @@ static ssize_t tpm_transmit(const uint8_t *sbuf, size_t sbufsiz, void *rbuf,
 
 	int timeout = 2 * 60 * 1000; /* two minutes timeout */
 	while (timeout) {
-		ASSERT(g_chip.vendor.status);
-		uint8_t status = g_chip.vendor.status(&g_chip);
-		if ((status & g_chip.vendor.req_complete_mask) ==
-		    g_chip.vendor.req_complete_val) {
+		ASSERT(chip.vendor.status);
+		uint8_t status = chip.vendor.status(&chip);
+		if ((status & chip.vendor.req_complete_mask) ==
+		    chip.vendor.req_complete_val) {
 			goto out_recv;
 		}
 
-		if (status == g_chip.vendor.req_canceled) {
+		if (status == chip.vendor.req_canceled) {
 			printk(BIOS_DEBUG,
 				"tpm_transmit: Operation Canceled\n");
 			rc = -1;
@@ -115,15 +115,15 @@ static ssize_t tpm_transmit(const uint8_t *sbuf, size_t sbufsiz, void *rbuf,
 		timeout--;
 	}
 
-	ASSERT(g_chip.vendor.cancel);
-	g_chip.vendor.cancel(&g_chip);
+	ASSERT(chip.vendor.cancel);
+	chip.vendor.cancel(&chip);
 	printk(BIOS_DEBUG, "tpm_transmit: Operation Timed out\n");
 	rc = -1; //ETIME;
 	goto out;
 
 out_recv:
 
-	rc = g_chip.vendor.recv(&g_chip, (uint8_t *) rbuf, rbufsiz);
+	rc = chip.vendor.recv(&chip, (uint8_t *) rbuf, rbufsiz);
 	if (rc < 0)
 		printk(BIOS_DEBUG, "tpm_transmit: tpm_recv: error %d\n", rc);
 out:
diff --git a/src/drivers/i2c/tpm/tpm.c b/src/drivers/i2c/tpm/tpm.c
index 71641d0edc..009227eb36 100644
--- a/src/drivers/i2c/tpm/tpm.c
+++ b/src/drivers/i2c/tpm/tpm.c
@@ -80,7 +80,7 @@ struct tpm_inf_dev {
 	enum i2c_chip_type chip_type;
 };
 
-static struct tpm_inf_dev g_tpm_dev;
+static struct tpm_inf_dev tpm_dev;
 
 /*
  * iic_tpm_read() - read from TPM register
@@ -101,20 +101,20 @@ static int iic_tpm_read(uint8_t addr, uint8_t *buffer, size_t len)
 	int rc;
 	int count;
 
-	if (g_tpm_dev.addr == 0)
+	if (tpm_dev.addr == 0)
 		return -1;
 
-	switch (g_tpm_dev.chip_type) {
+	switch (tpm_dev.chip_type) {
 	case SLB9635:
 	case UNKNOWN:
 		/* slb9635 protocol should work in both cases */
 		for (count = 0; count < MAX_COUNT; count++) {
-			rc = i2c_write_raw(g_tpm_dev.bus, g_tpm_dev.addr,
+			rc = i2c_write_raw(tpm_dev.bus, tpm_dev.addr,
 					   &addr, 1);
 			if (rc == 0)
 				break;  /* success, break to skip sleep */
 
-			udelay(g_tpm_dev.sleep_short);
+			udelay(tpm_dev.sleep_short);
 		}
 
 		if (rc)
@@ -125,8 +125,8 @@ static int iic_tpm_read(uint8_t addr, uint8_t *buffer, size_t len)
 		 * retrieving the data
 		 */
 		for (count = 0; count < MAX_COUNT; count++) {
-			udelay(g_tpm_dev.sleep_short);
-			rc = i2c_read_raw(g_tpm_dev.bus, g_tpm_dev.addr,
+			udelay(tpm_dev.sleep_short);
+			rc = i2c_read_raw(tpm_dev.bus, tpm_dev.addr,
 					  buffer, len);
 			if (rc == 0)
 				break;  /* success, break to skip sleep */
@@ -142,23 +142,23 @@ static int iic_tpm_read(uint8_t addr, uint8_t *buffer, size_t len)
 		 * retries should usually not be needed, but are kept just to
 		 * be safe on the safe side.
 		 */
-		struct i2c_msg aseg = { .flags = 0, .slave = g_tpm_dev.addr,
+		struct i2c_msg aseg = { .flags = 0, .slave = tpm_dev.addr,
 					.buf = &addr, .len = 1 };
 		struct i2c_msg dseg = { .flags = I2C_M_RD,
-					.slave = g_tpm_dev.addr,
+					.slave = tpm_dev.addr,
 					.buf = buffer, .len = len };
 		for (count = 0; count < MAX_COUNT; count++) {
-			rc = i2c_transfer(g_tpm_dev.bus, &aseg, 1) ||
-			     i2c_transfer(g_tpm_dev.bus, &dseg, 1);
+			rc = i2c_transfer(tpm_dev.bus, &aseg, 1) ||
+			     i2c_transfer(tpm_dev.bus, &dseg, 1);
 			if (rc == 0)
 				break;  /* break here to skip sleep */
-			udelay(g_tpm_dev.sleep_short);
+			udelay(tpm_dev.sleep_short);
 		}
 	}
 	}
 
 	/* take care of 'guard time' */
-	udelay(g_tpm_dev.sleep_short);
+	udelay(tpm_dev.sleep_short);
 	if (rc)
 		return -1;
 
@@ -179,14 +179,14 @@ static int iic_tpm_write_generic(uint8_t addr, uint8_t *buffer, size_t len,
 	}
 
 	/* prepare send buffer */
-	g_tpm_dev.buf[0] = addr;
-	memcpy(&(g_tpm_dev.buf[1]), buffer, len);
+	tpm_dev.buf[0] = addr;
+	memcpy(&(tpm_dev.buf[1]), buffer, len);
 
-	if (g_tpm_dev.addr == 0)
+	if (tpm_dev.addr == 0)
 		return -1;
 	for (count = 0; count < max_count; count++) {
-		rc = i2c_write_raw(g_tpm_dev.bus, g_tpm_dev.addr,
-				   g_tpm_dev.buf, len + 1);
+		rc = i2c_write_raw(tpm_dev.bus, tpm_dev.addr,
+				   tpm_dev.buf, len + 1);
 		if (rc == 0)
 			break;  /* success, break to skip sleep */
 
@@ -194,7 +194,7 @@ static int iic_tpm_write_generic(uint8_t addr, uint8_t *buffer, size_t len,
 	}
 
 	/* take care of 'guard time' */
-	udelay(g_tpm_dev.sleep_short);
+	udelay(tpm_dev.sleep_short);
 	if (rc)
 		return -1;
 
@@ -219,8 +219,8 @@ static int iic_tpm_write_generic(uint8_t addr, uint8_t *buffer, size_t len,
  */
 static int iic_tpm_write(uint8_t addr, uint8_t *buffer, size_t len)
 {
-	return iic_tpm_write_generic(addr, buffer, len, g_tpm_dev.sleep_short,
-			MAX_COUNT);
+	return iic_tpm_write_generic(addr, buffer, len, tpm_dev.sleep_short,
+				     MAX_COUNT);
 }
 
 /*
@@ -229,8 +229,8 @@ static int iic_tpm_write(uint8_t addr, uint8_t *buffer, size_t len)
  * */
 static int iic_tpm_write_long(uint8_t addr, uint8_t *buffer, size_t len)
 {
-	return iic_tpm_write_generic(addr, buffer, len, g_tpm_dev.sleep_long,
-			MAX_COUNT_LONG);
+	return iic_tpm_write_generic(addr, buffer, len, tpm_dev.sleep_long,
+				     MAX_COUNT_LONG);
 }
 
 static int check_locality(struct tpm_chip *chip, int loc)
@@ -479,11 +479,11 @@ int tpm_vendor_probe(unsigned int bus, uint32_t addr)
 	int ret;
 	long sw_run_duration = SLEEP_DURATION_PROBE_MS;
 
-	g_tpm_dev.chip_type = UNKNOWN;
-	g_tpm_dev.bus = bus;
-	g_tpm_dev.addr = addr;
-	g_tpm_dev.sleep_short = SLEEP_DURATION;
-	g_tpm_dev.sleep_long = SLEEP_DURATION_LONG;
+	tpm_dev.chip_type = UNKNOWN;
+	tpm_dev.bus = bus;
+	tpm_dev.addr = addr;
+	tpm_dev.sleep_short = SLEEP_DURATION;
+	tpm_dev.sleep_long = SLEEP_DURATION_LONG;
 
 	/*
 	 * Probe TPM. Check if the TPM_ACCESS register's ValidSts bit is set(1)
@@ -522,11 +522,11 @@ int tpm_vendor_init(struct tpm_chip *chip, unsigned int bus, uint32_t dev_addr)
 		return -1;
 	}
 
-	g_tpm_dev.chip_type = UNKNOWN;
-	g_tpm_dev.bus = bus;
-	g_tpm_dev.addr = dev_addr;
-	g_tpm_dev.sleep_short = SLEEP_DURATION;
-	g_tpm_dev.sleep_long = SLEEP_DURATION_LONG;
+	tpm_dev.chip_type = UNKNOWN;
+	tpm_dev.bus = bus;
+	tpm_dev.addr = dev_addr;
+	tpm_dev.sleep_short = SLEEP_DURATION;
+	tpm_dev.sleep_long = SLEEP_DURATION_LONG;
 
 	memset(&chip->vendor, 0, sizeof(struct tpm_vendor_specific));
 	chip->is_open = 1;
@@ -547,9 +547,9 @@ int tpm_vendor_init(struct tpm_chip *chip, unsigned int bus, uint32_t dev_addr)
 		goto out_err;
 
 	if (vendor == TPM_TIS_I2C_DID_VID_9645) {
-		g_tpm_dev.chip_type = SLB9645;
+		tpm_dev.chip_type = SLB9645;
 	} else if (be32_to_cpu(vendor) == TPM_TIS_I2C_DID_VID_9635) {
-		g_tpm_dev.chip_type = SLB9635;
+		tpm_dev.chip_type = SLB9635;
 	} else {
 		printk(BIOS_DEBUG, "Vendor ID 0x%08x not recognized.\n",
 			vendor);
@@ -557,8 +557,8 @@ int tpm_vendor_init(struct tpm_chip *chip, unsigned int bus, uint32_t dev_addr)
 	}
 
 	printk(BIOS_DEBUG, "I2C TPM %u:%02x (chip type %s device-id 0x%X)\n",
-	       g_tpm_dev.bus, g_tpm_dev.addr,
-	       chip_name[g_tpm_dev.chip_type], vendor >> 16);
+	       tpm_dev.bus, tpm_dev.addr,
+	       chip_name[tpm_dev.chip_type], vendor >> 16);
 
 	/*
 	 * A timeout query to TPM can be placed here.