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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 12:17:09 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-06 12:17:09 -0800 |
commit | 9bbd4b9f38f56b4ee2c8ff268a1104ff38333e90 (patch) | |
tree | 7e889c87c06165e553fdc9056b9fa4d91b91a5ee /drivers | |
parent | 3e069adabc9487b5e28065a17e6a228da3412dfd (diff) | |
parent | 2d799dde8e69494e0234b8ecd5ce95cd06224329 (diff) | |
download | linux-stable-9bbd4b9f38f56b4ee2c8ff268a1104ff38333e90.tar.gz linux-stable-9bbd4b9f38f56b4ee2c8ff268a1104ff38333e90.tar.bz2 linux-stable-9bbd4b9f38f56b4ee2c8ff268a1104ff38333e90.zip |
Merge tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
"A fairly large (by DT standards) pull request this time with the
majority being some overdue moving DT binding docs around to
consolidate similar bindings.
- DT binding doc consolidation moving similar bindings to common
locations. The majority of these are display related which were
scattered in video/, fb/, drm/, gpu/, and panel/ directories.
- Add new config option, CONFIG_OF_ALL_DTBS, to enable building all
dtbs in the tree for most arches with dts files (except powerpc for
now).
- OF_IRQ=n fixes for user enabled CONFIG_OF.
- of_node_put ref counting fixes from Julia Lawall.
- Common DT binding for wakeup-source and deprecation of all similar
bindings.
- DT binding for PXA LCD controller.
- Allow ignoring failed PCI resource translations in order to ignore
64-bit addresses on non-LPAE 32-bit kernels.
- Support setting the NUMA node from DT instead of only from parent
device.
- Couple of earlycon DT parsing fixes for address and options"
* tag 'devicetree-for-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (45 commits)
MAINTAINERS: update DT binding doc locations
devicetree: add Sigma Designs vendor prefix
of: simplify arch_find_n_match_cpu_physical_id() function
Documentation: arm: Fixed typo in socfpga fpga mgr example
Documentation: devicetree: fix reference to legacy wakeup properties
Documentation: devicetree: standardize/consolidate on "wakeup-source" property
drivers: of: removing assignment of 0 to static variable
xtensa: enable building of all dtbs
mips: enable building of all dtbs
metag: enable building of all dtbs
metag: use common make variables for dtb builds
h8300: enable building of all dtbs
arm64: enable building of all dtbs
arm: enable building of all dtbs
arc: enable building of all dtbs
arc: use common make variables for dtb builds
of: add config option to enable building of all dtbs
of/fdt: fix error checking for earlycon address
of/overlay: add missing of_node_put
of/platform: add missing of_node_put
...
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/of/Kconfig | 10 | ||||
-rw-r--r-- | drivers/of/address.c | 6 | ||||
-rw-r--r-- | drivers/of/base.c | 5 | ||||
-rw-r--r-- | drivers/of/fdt.c | 12 | ||||
-rw-r--r-- | drivers/of/irq.c | 9 | ||||
-rw-r--r-- | drivers/of/of_pci.c | 6 | ||||
-rw-r--r-- | drivers/of/of_reserved_mem.c | 43 | ||||
-rw-r--r-- | drivers/of/overlay.c | 5 | ||||
-rw-r--r-- | drivers/of/platform.c | 8 | ||||
-rw-r--r-- | drivers/of/unittest.c | 8 |
10 files changed, 93 insertions, 19 deletions
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 59bb8556e43a..e2a48415d969 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -23,6 +23,16 @@ config OF_UNITTEST If unsure, say N here, but this option is safe to enable. +config OF_ALL_DTBS + bool "Build all Device Tree Blobs" + depends on COMPILE_TEST + select DTC + help + This option builds all possible Device Tree Blobs (DTBs) for the + current architecture. + + If unsure, say N here, but this option is safe to enable. + config OF_FLATTREE bool select DTC diff --git a/drivers/of/address.c b/drivers/of/address.c index 384574c3987c..cd53fe4a0c86 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -330,6 +330,12 @@ int of_pci_range_to_resource(struct of_pci_range *range, } res->start = port; } else { + if ((sizeof(resource_size_t) < 8) && + upper_32_bits(range->cpu_addr)) { + err = -EINVAL; + goto invalid_range; + } + res->start = range->cpu_addr; } res->end = res->start + range->size - 1; diff --git a/drivers/of/base.c b/drivers/of/base.c index 8b5a187a7682..017dd94f16ea 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -375,10 +375,7 @@ bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun, cpu, thread)) return true; - if (__of_find_n_match_cpu_property(cpun, "reg", cpu, thread)) - return true; - - return false; + return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread); } /** diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 6e82bc42373b..d2430298a309 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -184,7 +184,7 @@ static void * unflatten_dt_node(const void *blob, struct property *pp, **prev_pp = NULL; const char *pathp; unsigned int l, allocl; - static int depth = 0; + static int depth; int old_depth; int offset; int has_name = 0; @@ -813,20 +813,24 @@ static int __init early_init_dt_scan_chosen_serial(void) if (!p || !l) return -ENOENT; + /* Remove console options if present */ + l = strchrnul(p, ':') - p; + /* Get the node specified by stdout-path */ - offset = fdt_path_offset(fdt, p); + offset = fdt_path_offset_namelen(fdt, p, l); if (offset < 0) return -ENODEV; while (match->compatible[0]) { - unsigned long addr; + u64 addr; + if (fdt_node_check_compatible(fdt, offset, match->compatible)) { match++; continue; } addr = fdt_translate_address(fdt, offset); - if (!addr) + if (addr == OF_BAD_ADDR) return -ENXIO; of_setup_earlycon(addr, match->data); diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 0baf626da56a..902b89be7217 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map); * Returns a pointer to the interrupt parent node, or NULL if the interrupt * parent could not be determined. */ -struct device_node *of_irq_find_parent(struct device_node *child) +static struct device_node *of_irq_find_parent(struct device_node *child) { struct device_node *p; const __be32 *parp; @@ -501,10 +501,12 @@ void __init of_irq_init(const struct of_device_id *matches) * pointer, interrupt-parent device_node etc. */ desc = kzalloc(sizeof(*desc), GFP_KERNEL); - if (WARN_ON(!desc)) + if (WARN_ON(!desc)) { + of_node_put(np); goto err; + } - desc->dev = np; + desc->dev = of_node_get(np); desc->interrupt_parent = of_irq_find_parent(np); if (desc->interrupt_parent == np) desc->interrupt_parent = NULL; @@ -575,6 +577,7 @@ void __init of_irq_init(const struct of_device_id *matches) err: list_for_each_entry_safe(desc, temp_desc, &intc_desc_list, list) { list_del(&desc->list); + of_node_put(desc->dev); kfree(desc); } } diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c index d0c8902dfbf4..ff27177f49ed 100644 --- a/drivers/of/of_pci.c +++ b/drivers/of/of_pci.c @@ -249,8 +249,10 @@ int of_pci_get_host_bridge_resources(struct device_node *dev, } err = of_pci_range_to_resource(&range, dev, res); - if (err) - goto conversion_failed; + if (err) { + kfree(res); + continue; + } if (resource_type(res) == IORESOURCE_IO) { if (!io_base) { diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c index 726ebe792813..62f467b8ccae 100644 --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -1,7 +1,7 @@ /* * Device tree based initialization code for reserved memory. * - * Copyright (c) 2013, The Linux Foundation. All Rights Reserved. + * Copyright (c) 2013, 2015 The Linux Foundation. All Rights Reserved. * Copyright (c) 2013,2014 Samsung Electronics Co., Ltd. * http://www.samsung.com * Author: Marek Szyprowski <m.szyprowski@samsung.com> @@ -20,6 +20,7 @@ #include <linux/mm.h> #include <linux/sizes.h> #include <linux/of_reserved_mem.h> +#include <linux/sort.h> #define MAX_RESERVED_REGIONS 16 static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS]; @@ -197,12 +198,52 @@ static int __init __reserved_mem_init_node(struct reserved_mem *rmem) return -ENOENT; } +static int __init __rmem_cmp(const void *a, const void *b) +{ + const struct reserved_mem *ra = a, *rb = b; + + return ra->base - rb->base; +} + +static void __init __rmem_check_for_overlap(void) +{ + int i; + + if (reserved_mem_count < 2) + return; + + sort(reserved_mem, reserved_mem_count, sizeof(reserved_mem[0]), + __rmem_cmp, NULL); + for (i = 0; i < reserved_mem_count - 1; i++) { + struct reserved_mem *this, *next; + + this = &reserved_mem[i]; + next = &reserved_mem[i + 1]; + if (!(this->base && next->base)) + continue; + if (this->base + this->size > next->base) { + phys_addr_t this_end, next_end; + + this_end = this->base + this->size; + next_end = next->base + next->size; + WARN(1, + "Reserved memory: OVERLAP DETECTED!\n%s (%pa--%pa) overlaps with %s (%pa--%pa)\n", + this->name, &this->base, &this_end, + next->name, &next->base, &next_end); + } + } +} + /** * fdt_init_reserved_mem - allocate and init all saved reserved memory regions */ void __init fdt_init_reserved_mem(void) { int i; + + /* check for overlapping reserved regions */ + __rmem_check_for_overlap(); + for (i = 0; i < reserved_mem_count; i++) { struct reserved_mem *rmem = &reserved_mem[i]; unsigned long node = rmem->fdt_node; diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index 24e025f79299..54e5af9d7377 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -149,6 +149,7 @@ static int of_overlay_apply_one(struct of_overlay *ov, pr_err("%s: Failed to apply single node @%s/%s\n", __func__, target->full_name, child->name); + of_node_put(child); return ret; } } @@ -417,8 +418,10 @@ static int overlay_subtree_check(struct device_node *tree, return 1; for_each_child_of_node(tree, child) { - if (overlay_subtree_check(child, dn)) + if (overlay_subtree_check(child, dn)) { + of_node_put(child); return 1; + } } return 0; diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 1001efaedcb8..af98343614d8 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -405,8 +405,10 @@ int of_platform_bus_probe(struct device_node *root, if (!of_match_node(matches, child)) continue; rc = of_platform_bus_create(child, matches, NULL, parent, false); - if (rc) + if (rc) { + of_node_put(child); break; + } } of_node_put(root); @@ -447,8 +449,10 @@ int of_platform_populate(struct device_node *root, for_each_child_of_node(root, child) { rc = of_platform_bus_create(child, matches, lookup, parent, true); - if (rc) + if (rc) { + of_node_put(child); break; + } } of_node_set_flag(root, OF_POPULATED_BUS); diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 9f71770b6226..e16ea5717b7f 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -205,16 +205,20 @@ static int __init of_unittest_check_node_linkage(struct device_node *np) if (child->parent != np) { pr_err("Child node %s links to wrong parent %s\n", child->name, np->name); - return -EINVAL; + rc = -EINVAL; + goto put_child; } rc = of_unittest_check_node_linkage(child); if (rc < 0) - return rc; + goto put_child; count += rc; } return count + 1; +put_child: + of_node_put(child); + return rc; } static void __init of_unittest_check_tree_linkage(void) |