diff options
author | Grant Likely <grant.likely@linaro.org> | 2014-07-16 07:25:43 +0200 |
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committer | Grant Likely <grant.likely@linaro.org> | 2014-07-24 01:05:46 +0200 |
commit | a25095d451ece23b1fef34474f3230100db7aa05 (patch) | |
tree | 1144ef8101664c7242e27d62b179ec7d9438cefb /arch/powerpc/kernel/prom.c | |
parent | of: Make sure attached nodes don't carry along extra children (diff) | |
download | linux-a25095d451ece23b1fef34474f3230100db7aa05.tar.xz linux-a25095d451ece23b1fef34474f3230100db7aa05.zip |
of: Move dynamic node fixups out of powerpc and into common code
PowerPC does an odd thing with dynamic nodes. It uses a notifier to
catch new node additions and set some of the values like name and type.
This makes no sense since that same code can be put directly into
of_attach_node(). Besides, all dynamic node users need this, not just
powerpc. Fix this problem by moving the logic out of arch/powerpc and
into drivers/of/dynamic.c.
It is also important to remove this notifier because we want to move the
firing of notifiers from before the tree is modified to after so that
the receiver gets a consistent view of the tree, but that is
incompatible with notifiers that modify the node.
Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Nathan Fontenot <nfont@austin.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
-rw-r--r-- | arch/powerpc/kernel/prom.c | 70 |
1 files changed, 0 insertions, 70 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index b694b0730971..9e8d8a880d6f 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -821,76 +821,6 @@ int cpu_to_chip_id(int cpu) } EXPORT_SYMBOL(cpu_to_chip_id); -#ifdef CONFIG_PPC_PSERIES -/* - * Fix up the uninitialized fields in a new device node: - * name, type and pci-specific fields - */ - -static int of_finish_dynamic_node(struct device_node *node) -{ - struct device_node *parent = of_get_parent(node); - int err = 0; - const phandle *ibm_phandle; - - node->name = of_get_property(node, "name", NULL); - node->type = of_get_property(node, "device_type", NULL); - - if (!node->name) - node->name = "<NULL>"; - if (!node->type) - node->type = "<NULL>"; - - if (!parent) { - err = -ENODEV; - goto out; - } - - /* We don't support that function on PowerMac, at least - * not yet - */ - if (machine_is(powermac)) - return -ENODEV; - - /* fix up new node's phandle field */ - if ((ibm_phandle = of_get_property(node, "ibm,phandle", NULL))) - node->phandle = *ibm_phandle; - -out: - of_node_put(parent); - return err; -} - -static int prom_reconfig_notifier(struct notifier_block *nb, - unsigned long action, void *node) -{ - int err; - - switch (action) { - case OF_RECONFIG_ATTACH_NODE: - err = of_finish_dynamic_node(node); - if (err < 0) - printk(KERN_ERR "finish_node returned %d\n", err); - break; - default: - err = 0; - break; - } - return notifier_from_errno(err); -} - -static struct notifier_block prom_reconfig_nb = { - .notifier_call = prom_reconfig_notifier, - .priority = 10, /* This one needs to run first */ -}; - -static int __init prom_reconfig_setup(void) -{ - return of_reconfig_notifier_register(&prom_reconfig_nb); -} -__initcall(prom_reconfig_setup); -#endif - bool arch_match_cpu_phys_id(int cpu, u64 phys_id) { return (int)phys_id == get_hard_smp_processor_id(cpu); |