I'm trying to write a function that gets a list of all aliases
aliases {
serial0 = &serial0;
serial1 = &serial1;
pci0 = &pci0;
pci1 = &pci1;
pci2 = &pci2;
};
That is, I do not know which aliases are in the /aliases node, so I need a
function that works somewhat like of_find_property(), but just returns the Nth
property instead of doing a strcmp.
I can't seem to find one, so I probably need to write one. However, I noticed
that of_find_property() uses a lock:
read_lock(&devtree_lock);
for (pp = np->properties; pp != 0; pp = pp->next) {
if (of_prop_cmp(pp->name, name) == 0) {
if (lenp != 0)
*lenp = pp->length;
break;
}
}
read_unlock(&devtree_lock);
But the comment for devtree_lock says this:
extern rwlock_t devtree_lock; /* temporary while merging */
Since arch/ppc is going away, does this meant that the lock can go away do?
--
Timur Tabi
Linux kernel developer at Freescale
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