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silicom: unobfuscate get_{status,master}_port_fn()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-03-30 16:07:02 -04:00
parent 7e1be8a501
commit fb8004d39b
1 changed files with 19 additions and 48 deletions
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67
drivers/staging/silicom/bp_mod.c
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@ -1728,62 +1728,33 @@ int gpio6_clear_fn(bpctl_dev_t *pbpctl_dev)
}
#endif /*BYPASS_DEBUG */
static bpctl_dev_t *lookup_port(bpctl_dev_t *dev)
{
bpctl_dev_t *p;
int n;
for (n = 0, p = bpctl_dev_arr; n < device_num && p->pdev; n++) {
if (p->bus == dev->bus
&& p->slot == dev->slot
&& p->func == (dev->func ^ 1))
return p;
}
return NULL;
}
static bpctl_dev_t *get_status_port_fn(bpctl_dev_t *pbpctl_dev)
{
int idx_dev = 0;
if (pbpctl_dev == NULL)
return NULL;
if ((pbpctl_dev->func == 0) || (pbpctl_dev->func == 2)) {
for (idx_dev = 0;
((bpctl_dev_arr[idx_dev].pdev != NULL)
&& (idx_dev < device_num)); idx_dev++) {
if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus)
&& (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot)
&& ((bpctl_dev_arr[idx_dev].func == 1)
&& (pbpctl_dev->func == 0))) {
return &(bpctl_dev_arr[idx_dev]);
}
if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) &&
(bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) &&
((bpctl_dev_arr[idx_dev].func == 3)
&& (pbpctl_dev->func == 2))) {
return &(bpctl_dev_arr[idx_dev]);
}
}
if (pbpctl_dev) {
if (pbpctl_dev->func == 0 || pbpctl_dev->func == 2)
return lookup_port(pbpctl_dev);
}
return NULL;
}
static bpctl_dev_t *get_master_port_fn(bpctl_dev_t *pbpctl_dev)
{
int idx_dev = 0;
if (pbpctl_dev == NULL)
return NULL;
if ((pbpctl_dev->func == 1) || (pbpctl_dev->func == 3)) {
for (idx_dev = 0;
((bpctl_dev_arr[idx_dev].pdev != NULL)
&& (idx_dev < device_num)); idx_dev++) {
if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus)
&& (bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot)
&& ((bpctl_dev_arr[idx_dev].func == 0)
&& (pbpctl_dev->func == 1))) {
return &(bpctl_dev_arr[idx_dev]);
}
if ((bpctl_dev_arr[idx_dev].bus == pbpctl_dev->bus) &&
(bpctl_dev_arr[idx_dev].slot == pbpctl_dev->slot) &&
((bpctl_dev_arr[idx_dev].func == 2)
&& (pbpctl_dev->func == 3))) {
return &(bpctl_dev_arr[idx_dev]);
}
}
if (pbpctl_dev) {
if (pbpctl_dev->func == 1 || pbpctl_dev->func == 3)
return lookup_port(pbpctl_dev);
}
return NULL;
}