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firewire: core: rename an internal function

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according to what it really does.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This commit is contained in:
Stefan Richter 2010-02-19 21:00:31 +01:00
parent 137d9ebfdb
commit fd6e0c5181
1 changed files with 14 additions and 14 deletions
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28
drivers/firewire/core-device.c
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@ -492,29 +492,29 @@ static int read_rom(struct fw_device *device,
return rcode; return rcode;
} }
#define READ_BIB_ROM_SIZE 256 #define MAX_CONFIG_ROM_SIZE 256
/* /*
* Read the bus info block, perform a speed probe, and read all of the rest of * Read the bus info block, perform a speed probe, and read all of the rest of
* the config ROM. We do all this with a cached bus generation. If the bus * the config ROM. We do all this with a cached bus generation. If the bus
* generation changes under us, read_bus_info_block will fail and get retried. * generation changes under us, read_config_rom will fail and get retried.
* It's better to start all over in this case because the node from which we * It's better to start all over in this case because the node from which we
* are reading the ROM may have changed the ROM during the reset. * are reading the ROM may have changed the ROM during the reset.
*/ */
static int read_bus_info_block(struct fw_device *device, int generation) static int read_config_rom(struct fw_device *device, int generation)
{ {
const u32 *old_rom, *new_rom; const u32 *old_rom, *new_rom;
u32 *rom, *stack; u32 *rom, *stack;
u32 sp, key; u32 sp, key;
int i, end, length, ret = -1; int i, end, length, ret = -1;
rom = kmalloc(sizeof(*rom) * READ_BIB_ROM_SIZE + rom = kmalloc(sizeof(*rom) * MAX_CONFIG_ROM_SIZE +
sizeof(*stack) * READ_BIB_ROM_SIZE, GFP_KERNEL); sizeof(*stack) * MAX_CONFIG_ROM_SIZE, GFP_KERNEL);
if (rom == NULL) if (rom == NULL)
return -ENOMEM; return -ENOMEM;
stack = &rom[READ_BIB_ROM_SIZE]; stack = &rom[MAX_CONFIG_ROM_SIZE];
memset(rom, 0, sizeof(*rom) * READ_BIB_ROM_SIZE); memset(rom, 0, sizeof(*rom) * MAX_CONFIG_ROM_SIZE);
device->max_speed = SCODE_100; device->max_speed = SCODE_100;
@ -581,14 +581,14 @@ static int read_bus_info_block(struct fw_device *device, int generation)
*/ */
key = stack[--sp]; key = stack[--sp];
i = key & 0xffffff; i = key & 0xffffff;
if (WARN_ON(i >= READ_BIB_ROM_SIZE)) if (WARN_ON(i >= MAX_CONFIG_ROM_SIZE))
goto out; goto out;
/* Read header quadlet for the block to get the length. */ /* Read header quadlet for the block to get the length. */
if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE) if (read_rom(device, generation, i, &rom[i]) != RCODE_COMPLETE)
goto out; goto out;
end = i + (rom[i] >> 16) + 1; end = i + (rom[i] >> 16) + 1;
if (end > READ_BIB_ROM_SIZE) { if (end > MAX_CONFIG_ROM_SIZE) {
/* /*
* This block extends outside the config ROM which is * This block extends outside the config ROM which is
* a firmware bug. Ignore this whole block, i.e. * a firmware bug. Ignore this whole block, i.e.
@ -621,7 +621,7 @@ static int read_bus_info_block(struct fw_device *device, int generation)
* fake immediate entry so that later iterators over * fake immediate entry so that later iterators over
* the ROM don't have to check offsets all the time. * the ROM don't have to check offsets all the time.
*/ */
if (i + (rom[i] & 0xffffff) >= READ_BIB_ROM_SIZE) { if (i + (rom[i] & 0xffffff) >= MAX_CONFIG_ROM_SIZE) {
fw_error("skipped unsupported ROM entry %x at %llx\n", fw_error("skipped unsupported ROM entry %x at %llx\n",
rom[i], rom[i],
i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM); i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
@ -971,7 +971,7 @@ static void fw_device_init(struct work_struct *work)
* device. * device.
*/ */
if (read_bus_info_block(device, device->generation) < 0) { if (read_config_rom(device, device->generation) < 0) {
if (device->config_rom_retries < MAX_RETRIES && if (device->config_rom_retries < MAX_RETRIES &&
atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { atomic_read(&device->state) == FW_DEVICE_INITIALIZING) {
device->config_rom_retries++; device->config_rom_retries++;
@ -1088,7 +1088,7 @@ enum {
}; };
/* Reread and compare bus info block and header of root directory */ /* Reread and compare bus info block and header of root directory */
static int reread_bus_info_block(struct fw_device *device, int generation) static int reread_config_rom(struct fw_device *device, int generation)
{ {
u32 q; u32 q;
int i; int i;
@ -1114,7 +1114,7 @@ static void fw_device_refresh(struct work_struct *work)
struct fw_card *card = device->card; struct fw_card *card = device->card;
int node_id = device->node_id; int node_id = device->node_id;
switch (reread_bus_info_block(device, device->generation)) { switch (reread_config_rom(device, device->generation)) {
case REREAD_BIB_ERROR: case REREAD_BIB_ERROR:
if (device->config_rom_retries < MAX_RETRIES / 2 && if (device->config_rom_retries < MAX_RETRIES / 2 &&
atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { atomic_read(&device->state) == FW_DEVICE_INITIALIZING) {
@ -1148,7 +1148,7 @@ static void fw_device_refresh(struct work_struct *work)
*/ */
device_for_each_child(&device->device, NULL, shutdown_unit); device_for_each_child(&device->device, NULL, shutdown_unit);
if (read_bus_info_block(device, device->generation) < 0) { if (read_config_rom(device, device->generation) < 0) {
if (device->config_rom_retries < MAX_RETRIES && if (device->config_rom_retries < MAX_RETRIES &&
atomic_read(&device->state) == FW_DEVICE_INITIALIZING) { atomic_read(&device->state) == FW_DEVICE_INITIALIZING) {
device->config_rom_retries++; device->config_rom_retries++;