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Differential D48412 Diff 149117 stand/kshim/bsd_kernel.c

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stand/kshim/bsd_kernel.c

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static const char unknown_string[] = { "unknown" }; static const char unknown_string[] = { "unknown" };
static TAILQ_HEAD(, module_data) module_head = static TAILQ_HEAD(, module_data) module_head =
TAILQ_HEAD_INITIALIZER(module_head); TAILQ_HEAD_INITIALIZER(module_head);
static TAILQ_HEAD(, devclass) devclasses = static TAILQ_HEAD(, devclass) devclasses =
TAILQ_HEAD_INITIALIZER(devclasses); TAILQ_HEAD_INITIALIZER(devclasses);
static uint8_t
devclass_equal(const char *a, const char *b)
{
char ta, tb;
if (a == b)
return (1);
while (1) {
ta = *a;
tb = *b;
if (ta != tb)
return (0);
if (ta == 0)
break;
a++;
b++;
}
return (1);
}
int int
bus_generic_resume(device_t dev) bus_generic_resume(device_t dev)
{ {
return (0); return (0);
} }
int int
bus_generic_shutdown(device_t dev) bus_generic_shutdown(device_t dev)
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void * void *
device_get_method(device_t dev, const char *what) device_get_method(device_t dev, const char *what)
{ {
const struct device_method *mtod; const struct device_method *mtod;
mtod = dev->dev_module->driver->methods; mtod = dev->dev_module->driver->methods;
while (mtod->func != NULL) { while (mtod->func != NULL) {
if (devclass_equal(mtod->desc, what)) { if (strcmp(mtod->desc, what) == 0) {
impUnsubmitted
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So hps was a smart fellow. Why did he do it this odd, tortued way?

imp: So hps was a smart fellow. Why did he do it this odd, tortued way?
jhbAuthorUnsubmitted
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Maybe the a == b check? I'm not sure. It is also odd how many places it was used in places that had nothing to do with devclasses.

jhb: Maybe the a == b check? I'm not sure. It is also odd how many places it was used in places…
return (mtod->func); return (mtod->func);
} }
mtod++; mtod++;
} }
return ((void *)&default_method); return ((void *)&default_method);
} }
const char * const char *
Show All 36 Lines if (dev->dev_attached)
return (0); /* fail-safe */ return (0); /* fail-safe */
/* /*
* Find a module for our device, if any * Find a module for our device, if any
*/ */
bus_name_parent = device_get_name(device_get_parent(dev)); bus_name_parent = device_get_name(device_get_parent(dev));
TAILQ_FOREACH(mod, &module_head, entry) { TAILQ_FOREACH(mod, &module_head, entry) {
if (!devclass_equal(mod->bus_name, bus_name_parent)) if (strcmp(mod->bus_name, bus_name_parent) != 0)
continue; continue;
dc = devclass_find(mod->mod_name); dc = devclass_find(mod->mod_name);
/* Does this device need assigning to the new devclass? */ /* Does this device need assigning to the new devclass? */
if (dev->dev_class != dc) { if (dev->dev_class != dc) {
if (dev->dev_fixed_class) if (dev->dev_fixed_class)
continue; continue;
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} }
devclass_t devclass_t
devclass_find(const char *classname) devclass_find(const char *classname)
{ {
devclass_t dc; devclass_t dc;
TAILQ_FOREACH(dc, &devclasses, link) { TAILQ_FOREACH(dc, &devclasses, link) {
if (devclass_equal(dc->name, classname)) if (strcmp(dc->name, classname) == 0)
return (dc); return (dc);
} }
return (NULL); return (NULL);
} }
void void
module_register(void *data) module_register(void *data)
{ {
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