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silicom: helper functions are often useful... 

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-03-30 15:41:56 -04:00
parent e784788ddb
commit 7e1be8a501
1 changed files with 43 additions and 280 deletions
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323
drivers/staging/silicom/bp_mod.c
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@ -7541,22 +7541,17 @@ get_wd_set_caps_pfs(char *page, char **start, off_t off, int count,
return len;
}
int
set_bypass_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
static int user_on_off(const void __user *buffer, size_t count)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = 0, length = 0;
int length = 0;
if (count > (sizeof(kbuf) - 1))
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
if (copy_from_user(&kbuf, buffer, count))
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
@ -7564,12 +7559,22 @@ set_bypass_pfs(struct file *file, const char *buffer,
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
bypass_param = 1;
else if (strcmp(kbuf, "off") == 0)
bypass_param = 0;
return 1;
if (strcmp(kbuf, "off") == 0)
return 0;
return 0;
}
int
set_bypass_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = user_on_off(buffer, count);
if (bypass_param < 0)
return -1;
set_bypass_fn(pbp_device_block, bypass_param);
return count;
}
@ -7578,30 +7583,12 @@ set_tap_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count > (sizeof(kbuf) - 1))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_tap_fn(pbp_device_block, tap_param);
return count;
}
@ -7610,30 +7597,12 @@ set_disc_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count > (sizeof(kbuf) - 1))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_disc_fn(pbp_device_block, tap_param);
return count;
}
@ -7914,30 +7883,12 @@ set_dis_bypass_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = 0, length = 0;
if (count >= sizeof(kbuf))
int bypass_param = user_on_off(buffer, count);
if (bypass_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
bypass_param = 1;
else if (strcmp(kbuf, "off") == 0)
bypass_param = 0;
set_dis_bypass_fn(pbp_device_block, bypass_param);
return count;
}
@ -7946,30 +7897,12 @@ set_dis_tap_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count >= sizeof(kbuf))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_dis_tap_fn(pbp_device_block, tap_param);
return count;
}
@ -7978,30 +7911,12 @@ set_dis_disc_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count >= sizeof(kbuf))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_dis_disc_fn(pbp_device_block, tap_param);
return count;
}
@ -8069,31 +7984,12 @@ int
set_bypass_pwup_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = 0, length = 0;
if (count >= sizeof(kbuf))
int bypass_param = user_on_off(buffer, count);
if (bypass_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
bypass_param = 1;
else if (strcmp(kbuf, "off") == 0)
bypass_param = 0;
set_bypass_pwup_fn(pbp_device_block, bypass_param);
return count;
}
@ -8101,31 +7997,12 @@ int
set_bypass_pwoff_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = 0, length = 0;
if (count >= sizeof(kbuf))
int bypass_param = user_on_off(buffer, count);
if (bypass_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
bypass_param = 1;
else if (strcmp(kbuf, "off") == 0)
bypass_param = 0;
set_bypass_pwoff_fn(pbp_device_block, bypass_param);
return count;
}
@ -8133,31 +8010,12 @@ int
set_tap_pwup_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count >= sizeof(kbuf))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_tap_pwup_fn(pbp_device_block, tap_param);
return count;
}
@ -8165,31 +8023,12 @@ int
set_disc_pwup_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tap_param = 0, length = 0;
if (count >= sizeof(kbuf))
int tap_param = user_on_off(buffer, count);
if (tap_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tap_param = 1;
else if (strcmp(kbuf, "off") == 0)
tap_param = 0;
set_disc_pwup_fn(pbp_device_block, tap_param);
return count;
}
@ -8277,31 +8116,12 @@ int
set_std_nic_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int bypass_param = 0, length = 0;
if (count >= sizeof(kbuf))
int bypass_param = user_on_off(buffer, count);
if (bypass_param < 0)
return -EINVAL;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
bypass_param = 1;
else if (strcmp(kbuf, "off") == 0)
bypass_param = 0;
set_std_nic_fn(pbp_device_block, bypass_param);
return count;
}
@ -8420,31 +8240,12 @@ int
set_tpl_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tpl_param = 0, length = 0;
if (count > (sizeof(kbuf) - 1))
int tpl_param = user_on_off(buffer, count);
if (tpl_param < 0)
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tpl_param = 1;
else if (strcmp(kbuf, "off") == 0)
tpl_param = 0;
set_tpl_fn(pbp_device_block, tpl_param);
return count;
}
@ -8453,31 +8254,12 @@ int
set_wait_at_pwup_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tpl_param = 0, length = 0;
if (count > (sizeof(kbuf) - 1))
int tpl_param = user_on_off(buffer, count);
if (tpl_param < 0)
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tpl_param = 1;
else if (strcmp(kbuf, "off") == 0)
tpl_param = 0;
set_bp_wait_at_pwup_fn(pbp_device_block, tpl_param);
return count;
}
@ -8485,31 +8267,12 @@ int
set_hw_reset_pfs(struct file *file, const char *buffer,
unsigned long count, void *data)
{
char kbuf[256];
bpctl_dev_t *pbp_device_block = (bpctl_dev_t *) data;
int tpl_param = 0, length = 0;
if (count > (sizeof(kbuf) - 1))
int tpl_param = user_on_off(buffer, count);
if (tpl_param < 0)
return -1;
if (copy_from_user(&kbuf, buffer, count)) {
return -1;
}
kbuf[count] = '\0';
length = strlen(kbuf);
if (kbuf[length - 1] == '\n')
kbuf[--length] = '\0';
if (strcmp(kbuf, "on") == 0)
tpl_param = 1;
else if (strcmp(kbuf, "off") == 0)
tpl_param = 0;
set_bp_hw_reset_fn(pbp_device_block, tpl_param);
return count;
}