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authorLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 15:01:45 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-03-31 15:01:45 -0700
commit1ce235faa8fefa4eb7199cad890944c1d2ba1b3e (patch)
tree1ed51ca928c6760d524dc853cd879ab958e66bd9 /arch/arm64/kernel/psci.c
parente38be1b1066687204b05b6a46a2018806c7281de (diff)
parent196adf2f3015eacac0567278ba538e3ffdd16d0e (diff)
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull ARM64 updates from Catalin Marinas: - KGDB support for arm64 - PCI I/O space extended to 16M (in preparation of PCIe support patches) - Dropping ZONE_DMA32 in favour of ZONE_DMA (we only need one for the time being), together with swiotlb late initialisation to correctly setup the bounce buffer - DMA API cache maintenance support (not all ARMv8 platforms have hardware cache coherency) - Crypto extensions advertising via ELF_HWCAP2 for compat user space - Perf support for dwarf unwinding in compat mode - asm/tlb.h converted to the generic mmu_gather code - asm-generic rwsem implementation - Code clean-up * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (42 commits) arm64: Remove pgprot_dmacoherent() arm64: Support DMA_ATTR_WRITE_COMBINE arm64: Implement custom mmap functions for dma mapping arm64: Fix __range_ok macro arm64: Fix duplicated Kconfig entries arm64: mm: Route pmd thp functions through pte equivalents arm64: rwsem: use asm-generic rwsem implementation asm-generic: rwsem: de-PPCify rwsem.h arm64: enable generic CPU feature modalias matching for this architecture arm64: smp: make local symbol static arm64: debug: make local symbols static ARM64: perf: support dwarf unwinding in compat mode ARM64: perf: add support for frame pointer unwinding in compat mode ARM64: perf: add support for perf registers API arm64: Add boot time configuration of Intermediate Physical Address size arm64: Do not synchronise I and D caches for special ptes arm64: Make DMA coherent and strongly ordered mappings not executable arm64: barriers: add dmb barrier arm64: topology: Implement basic CPU topology support arm64: advertise ARMv8 extensions to 32-bit compat ELF binaries ...
Diffstat (limited to 'arch/arm64/kernel/psci.c')
-rw-r--r--arch/arm64/kernel/psci.c13
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 4f97db3d7363..ea4828a4aa96 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -176,22 +176,20 @@ static const struct of_device_id psci_of_match[] __initconst = {
{},
};
-int __init psci_init(void)
+void __init psci_init(void)
{
struct device_node *np;
const char *method;
u32 id;
- int err = 0;
np = of_find_matching_node(NULL, psci_of_match);
if (!np)
- return -ENODEV;
+ return;
pr_info("probing function IDs from device-tree\n");
if (of_property_read_string(np, "method", &method)) {
pr_warning("missing \"method\" property\n");
- err = -ENXIO;
goto out_put_node;
}
@@ -201,7 +199,6 @@ int __init psci_init(void)
invoke_psci_fn = __invoke_psci_fn_smc;
} else {
pr_warning("invalid \"method\" property: %s\n", method);
- err = -EINVAL;
goto out_put_node;
}
@@ -227,7 +224,7 @@ int __init psci_init(void)
out_put_node:
of_node_put(np);
- return err;
+ return;
}
#ifdef CONFIG_SMP
@@ -251,7 +248,7 @@ static int cpu_psci_cpu_boot(unsigned int cpu)
{
int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_entry));
if (err)
- pr_err("psci: failed to boot CPU%d (%d)\n", cpu, err);
+ pr_err("failed to boot CPU%d (%d)\n", cpu, err);
return err;
}
@@ -278,7 +275,7 @@ static void cpu_psci_cpu_die(unsigned int cpu)
ret = psci_ops.cpu_off(state);
- pr_crit("psci: unable to power off CPU%u (%d)\n", cpu, ret);
+ pr_crit("unable to power off CPU%u (%d)\n", cpu, ret);
}
#endif