* [PATCH 0/7] DT: consolidate bootmem support
@ 2018-01-05 23:14 Rob Herring
[not found] ` <20180105231424.19247-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
` (3 more replies)
0 siblings, 4 replies; 7+ messages in thread
From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw)
To: devicetree, linux-kernel; +Cc: Frank Rowand
This series adds support for bootmem to the DT core code and removes the
remaining arch specific early_init_dt_alloc_memory_arch implementations.
Compile tested only on arm64, mips, x86, and xtensa.
Rob
Rob Herring (7):
of/fdt: use memblock_virt_alloc for early alloc
cris: remove arch specific early DT functions
metag: remove arch specific early DT functions
mips: remove arch specific early_init_dt_alloc_memory_arch
nios2: remove arch specific early_init_dt_alloc_memory_arch
x86: remove arch specific early_init_dt_alloc_memory_arch
xtensa: remove arch specific early DT functions
arch/cris/kernel/Makefile | 19 -------------------
arch/cris/kernel/devicetree.c | 15 ---------------
arch/metag/kernel/devtree.c | 14 --------------
arch/mips/kernel/prom.c | 5 -----
arch/nios2/kernel/prom.c | 5 -----
arch/x86/kernel/devicetree.c | 6 ------
arch/xtensa/kernel/setup.c | 12 ------------
drivers/of/fdt.c | 16 ++++------------
drivers/of/unittest.c | 11 ++++++++---
include/linux/of_fdt.h | 1 -
10 files changed, 12 insertions(+), 92 deletions(-)
delete mode 100644 arch/cris/kernel/devicetree.c
--
2.14.1
^ permalink raw reply [flat|nested] 7+ messages in thread[parent not found: <20180105231424.19247-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]
* [PATCH 1/7] of/fdt: use memblock_virt_alloc for early alloc 2018-01-05 23:14 [PATCH 0/7] DT: consolidate bootmem support Rob Herring @ 2018-01-05 23:14 ` Rob Herring 2018-01-05 23:14 ` [PATCH 2/7] cris: remove arch specific early DT functions Rob Herring ` (2 subsequent siblings) 3 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw) To: devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Cc: Frank Rowand memblock_virt_alloc() works for both memblock and bootmem, so use it and make early_init_dt_alloc_memory_arch a static function. The arches using bootmem define early_init_dt_alloc_memory_arch as either: __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)) or: alloc_bootmem_align(size, align) Both of these evaluate to the same thing as does memblock_virt_alloc for bootmem. So we can disable the arch specific functions by making early_init_dt_alloc_memory_arch static and they can be removed in subsequent commits. Cc: Frank Rowand <frowand.list-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Signed-off-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> --- drivers/of/fdt.c | 16 ++++------------ drivers/of/unittest.c | 11 ++++++++--- include/linux/of_fdt.h | 1 - 3 files changed, 12 insertions(+), 16 deletions(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 4675e5ac4d11..444e65aa0d29 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -14,6 +14,7 @@ #include <linux/crc32.h> #include <linux/kernel.h> #include <linux/initrd.h> +#include <linux/bootmem.h> #include <linux/memblock.h> #include <linux/mutex.h> #include <linux/of.h> @@ -1183,14 +1184,6 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, return memblock_reserve(base, size); } -/* - * called from unflatten_device_tree() to bootstrap devicetree itself - * Architectures can override this definition if memblock isn't used - */ -void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return __va(memblock_alloc(size, align)); -} #else void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) { @@ -1209,13 +1202,12 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, &base, &size, nomap ? " (nomap)" : ""); return -ENOSYS; } +#endif -void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) +static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) { - WARN_ON(1); - return NULL; + return memblock_virt_alloc(size, align); } -#endif bool __init early_init_dt_verify(void *params) { diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 0f8052f1355c..7a9abaae874d 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -5,6 +5,7 @@ #define pr_fmt(fmt) "### dt-test ### " fmt +#include <linux/bootmem.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/errno.h> @@ -2053,6 +2054,11 @@ static struct overlay_info overlays[] = { static struct device_node *overlay_base_root; +static void * __init dt_alloc_memory(u64 size, u64 align) +{ + return memblock_virt_alloc(size, align); +} + /* * Create base device tree for the overlay unittest. * @@ -2092,8 +2098,7 @@ void __init unittest_unflatten_overlay_base(void) return; } - info->data = early_init_dt_alloc_memory_arch(size, - roundup_pow_of_two(FDT_V17_SIZE)); + info->data = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE)); if (!info->data) { pr_err("alloc for dtb 'overlay_base' failed"); return; @@ -2102,7 +2107,7 @@ void __init unittest_unflatten_overlay_base(void) memcpy(info->data, info->dtb_begin, size); __unflatten_device_tree(info->data, NULL, &info->np_overlay, - early_init_dt_alloc_memory_arch, true); + dt_alloc_memory, true); overlay_base_root = info->np_overlay; } diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 444e6e283828..02c05028d0ba 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -83,7 +83,6 @@ extern void early_init_dt_add_memory_arch(u64 base, u64 size); extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size); extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, bool no_map); -extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align); extern u64 dt_mem_next_cell(int s, const __be32 **cellp); /* Early flat tree scan hooks */ -- 2.14.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 1/7] of/fdt: use memblock_virt_alloc for early alloc @ 2018-01-05 23:14 ` Rob Herring 0 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw) To: devicetree, linux-kernel; +Cc: Frank Rowand memblock_virt_alloc() works for both memblock and bootmem, so use it and make early_init_dt_alloc_memory_arch a static function. The arches using bootmem define early_init_dt_alloc_memory_arch as either: __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)) or: alloc_bootmem_align(size, align) Both of these evaluate to the same thing as does memblock_virt_alloc for bootmem. So we can disable the arch specific functions by making early_init_dt_alloc_memory_arch static and they can be removed in subsequent commits. Cc: Frank Rowand <frowand.list@gmail.com> Signed-off-by: Rob Herring <robh@kernel.org> --- drivers/of/fdt.c | 16 ++++------------ drivers/of/unittest.c | 11 ++++++++--- include/linux/of_fdt.h | 1 - 3 files changed, 12 insertions(+), 16 deletions(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 4675e5ac4d11..444e65aa0d29 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -14,6 +14,7 @@ #include <linux/crc32.h> #include <linux/kernel.h> #include <linux/initrd.h> +#include <linux/bootmem.h> #include <linux/memblock.h> #include <linux/mutex.h> #include <linux/of.h> @@ -1183,14 +1184,6 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, return memblock_reserve(base, size); } -/* - * called from unflatten_device_tree() to bootstrap devicetree itself - * Architectures can override this definition if memblock isn't used - */ -void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return __va(memblock_alloc(size, align)); -} #else void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) { @@ -1209,13 +1202,12 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, &base, &size, nomap ? " (nomap)" : ""); return -ENOSYS; } +#endif -void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) +static void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) { - WARN_ON(1); - return NULL; + return memblock_virt_alloc(size, align); } -#endif bool __init early_init_dt_verify(void *params) { diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 0f8052f1355c..7a9abaae874d 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -5,6 +5,7 @@ #define pr_fmt(fmt) "### dt-test ### " fmt +#include <linux/bootmem.h> #include <linux/clk.h> #include <linux/err.h> #include <linux/errno.h> @@ -2053,6 +2054,11 @@ static struct overlay_info overlays[] = { static struct device_node *overlay_base_root; +static void * __init dt_alloc_memory(u64 size, u64 align) +{ + return memblock_virt_alloc(size, align); +} + /* * Create base device tree for the overlay unittest. * @@ -2092,8 +2098,7 @@ void __init unittest_unflatten_overlay_base(void) return; } - info->data = early_init_dt_alloc_memory_arch(size, - roundup_pow_of_two(FDT_V17_SIZE)); + info->data = dt_alloc_memory(size, roundup_pow_of_two(FDT_V17_SIZE)); if (!info->data) { pr_err("alloc for dtb 'overlay_base' failed"); return; @@ -2102,7 +2107,7 @@ void __init unittest_unflatten_overlay_base(void) memcpy(info->data, info->dtb_begin, size); __unflatten_device_tree(info->data, NULL, &info->np_overlay, - early_init_dt_alloc_memory_arch, true); + dt_alloc_memory, true); overlay_base_root = info->np_overlay; } diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 444e6e283828..02c05028d0ba 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -83,7 +83,6 @@ extern void early_init_dt_add_memory_arch(u64 base, u64 size); extern int early_init_dt_mark_hotplug_memory_arch(u64 base, u64 size); extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, bool no_map); -extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align); extern u64 dt_mem_next_cell(int s, const __be32 **cellp); /* Early flat tree scan hooks */ -- 2.14.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 2/7] cris: remove arch specific early DT functions 2018-01-05 23:14 [PATCH 0/7] DT: consolidate bootmem support Rob Herring [not found] ` <20180105231424.19247-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> @ 2018-01-05 23:14 ` Rob Herring 2018-01-05 23:14 ` [PATCH 3/7] metag: " Rob Herring 2018-01-05 23:14 ` [PATCH 4/7] mips: remove arch specific early_init_dt_alloc_memory_arch Rob Herring 3 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw) To: devicetree, linux-kernel Cc: Frank Rowand, Mikael Starvik, Jesper Nilsson, linux-cris-kernel Now that the DT core code handles bootmem arches, we can remove the cris specific early_init_dt_alloc_memory_arch function. As the default early_init_dt_add_memory_arch just does a WARN, we can just remove the entire devicetree.c file. Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: linux-cris-kernel@axis.com Signed-off-by: Rob Herring <robh@kernel.org> --- This is dependent on patch 1. Please ack and I'll take or apply after 4.16-rc1. arch/cris/kernel/Makefile | 19 ------------------- arch/cris/kernel/devicetree.c | 15 --------------- 2 files changed, 34 deletions(-) delete mode 100644 arch/cris/kernel/devicetree.c diff --git a/arch/cris/kernel/Makefile b/arch/cris/kernel/Makefile index af075a5fb9aa..e69de29bb2d1 100644 --- a/arch/cris/kernel/Makefile +++ b/arch/cris/kernel/Makefile @@ -1,19 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# $Id: Makefile,v 1.12 2004/10/19 13:07:43 starvik Exp $ -# -# Makefile for the linux kernel. -# - -CPPFLAGS_vmlinux.lds := -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE) -extra-y := vmlinux.lds - -obj-y := process.o traps.o irq.o ptrace.o setup.o time.o sys_cris.o -obj-y += devicetree.o -obj-y += stacktrace.o - -obj-$(CONFIG_MODULES) += crisksyms.o -obj-$(CONFIG_MODULES) += module.o -obj-$(CONFIG_SYSTEM_PROFILER) += profile.o - -clean: - diff --git a/arch/cris/kernel/devicetree.c b/arch/cris/kernel/devicetree.c deleted file mode 100644 index 36e1c658229f..000000000000 --- a/arch/cris/kernel/devicetree.c +++ /dev/null @@ -1,15 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/init.h> -#include <linux/bootmem.h> -#include <linux/printk.h> - -void __init early_init_dt_add_memory_arch(u64 base, u64 size) -{ - pr_err("%s(%llx, %llx)\n", - __func__, base, size); -} - -void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return alloc_bootmem_align(size, align); -} -- 2.14.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 3/7] metag: remove arch specific early DT functions 2018-01-05 23:14 [PATCH 0/7] DT: consolidate bootmem support Rob Herring [not found] ` <20180105231424.19247-1-robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> 2018-01-05 23:14 ` [PATCH 2/7] cris: remove arch specific early DT functions Rob Herring @ 2018-01-05 23:14 ` Rob Herring 2018-01-05 23:14 ` [PATCH 4/7] mips: remove arch specific early_init_dt_alloc_memory_arch Rob Herring 3 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw) To: devicetree, linux-kernel; +Cc: Frank Rowand, James Hogan, linux-metag Now that the DT core code handles bootmem arches, we can remove the metag specific early_init_dt_alloc_memory_arch function. As the default early_init_dt_add_memory_arch just does a WARN, we can remove it too. Cc: James Hogan <jhogan@kernel.org> Cc: linux-metag@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> --- This is dependent on patch 1. Please ack and I'll take or apply after 4.16-rc1. arch/metag/kernel/devtree.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c index 18dd7aea9fdc..6af749a64438 100644 --- a/arch/metag/kernel/devtree.c +++ b/arch/metag/kernel/devtree.c @@ -14,26 +14,12 @@ #include <linux/init.h> #include <linux/export.h> #include <linux/types.h> -#include <linux/bootmem.h> -#include <linux/memblock.h> -#include <linux/of.h> #include <linux/of_fdt.h> #include <asm/setup.h> #include <asm/page.h> #include <asm/mach/arch.h> -void __init early_init_dt_add_memory_arch(u64 base, u64 size) -{ - pr_err("%s(%llx, %llx)\n", - __func__, base, size); -} - -void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return alloc_bootmem_align(size, align); -} - static const void * __init arch_get_next_mach(const char *const **match) { static const struct machine_desc *mdesc = __arch_info_begin; -- 2.14.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 4/7] mips: remove arch specific early_init_dt_alloc_memory_arch 2018-01-05 23:14 [PATCH 0/7] DT: consolidate bootmem support Rob Herring ` (2 preceding siblings ...) 2018-01-05 23:14 ` [PATCH 3/7] metag: " Rob Herring @ 2018-01-05 23:14 ` Rob Herring 3 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:14 UTC (permalink / raw) To: devicetree, linux-kernel; +Cc: Frank Rowand, Ralf Baechle, linux-mips Now that the DT core code handles bootmem arches, we can remove the MIPS specific early_init_dt_alloc_memory_arch function. Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Signed-off-by: Rob Herring <robh@kernel.org> --- This is dependent on patch 1. Please ack and I'll take or apply after 4.16-rc1. arch/mips/kernel/prom.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c index 0dbcd152a1a9..89950b7bf536 100644 --- a/arch/mips/kernel/prom.c +++ b/arch/mips/kernel/prom.c @@ -44,11 +44,6 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size) return add_memory_region(base, size, BOOT_MEM_RAM); } -void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)); -} - int __init early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, bool nomap) { -- 2.14.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH 0/7] DT: consolidate bootmem support @ 2018-01-05 23:20 Rob Herring 2018-01-05 23:20 ` [PATCH 3/7] metag: remove arch specific early DT functions Rob Herring 0 siblings, 1 reply; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:20 UTC (permalink / raw) To: devicetree-u79uwXL29TY76Z2rM5mHXA, linux-kernel-u79uwXL29TY76Z2rM5mHXA Cc: Frank Rowand, Chris Zankel, Max Filippov, linux-xtensa-PjhNF2WwrV/0Sa2dR60CXw, Thomas Gleixner, Ingo Molnar, H. Peter Anvin, x86-DgEjT+Ai2ygdnm+yROfE0A, Ley Foon Tan, nios2-dev-g9ZBwUv/Ih/yUk5EbOjzuce+I+R0W71w, Ralf Baechle, linux-mips-6z/3iImG2C8G8FEW9MqTrA, James Hogan, linux-metag-u79uwXL29TY76Z2rM5mHXA, Mikael Starvik, Jesper Nilsson, linux-cris-kernel-VrBV9hrLPhE This series adds support for bootmem to the DT core code and removes the remaining arch specific early_init_dt_alloc_memory_arch implementations. Compile tested only on arm64, mips, x86, and xtensa. Rob Rob Herring (7): of/fdt: use memblock_virt_alloc for early alloc cris: remove arch specific early DT functions metag: remove arch specific early DT functions mips: remove arch specific early_init_dt_alloc_memory_arch nios2: remove arch specific early_init_dt_alloc_memory_arch x86: remove arch specific early_init_dt_alloc_memory_arch xtensa: remove arch specific early DT functions arch/cris/kernel/Makefile | 19 ------------------- arch/cris/kernel/devicetree.c | 15 --------------- arch/metag/kernel/devtree.c | 14 -------------- arch/mips/kernel/prom.c | 5 ----- arch/nios2/kernel/prom.c | 5 ----- arch/x86/kernel/devicetree.c | 6 ------ arch/xtensa/kernel/setup.c | 12 ------------ drivers/of/fdt.c | 16 ++++------------ drivers/of/unittest.c | 11 ++++++++--- include/linux/of_fdt.h | 1 - 10 files changed, 12 insertions(+), 92 deletions(-) delete mode 100644 arch/cris/kernel/devicetree.c -- 2.14.1 ^ permalink raw reply [flat|nested] 7+ messages in thread
* [PATCH 3/7] metag: remove arch specific early DT functions 2018-01-05 23:20 [PATCH 0/7] DT: consolidate bootmem support Rob Herring @ 2018-01-05 23:20 ` Rob Herring 0 siblings, 0 replies; 7+ messages in thread From: Rob Herring @ 2018-01-05 23:20 UTC (permalink / raw) To: devicetree, linux-kernel; +Cc: Frank Rowand, James Hogan, linux-metag Now that the DT core code handles bootmem arches, we can remove the metag specific early_init_dt_alloc_memory_arch function. As the default early_init_dt_add_memory_arch just does a WARN, we can remove it too. Cc: James Hogan <jhogan@kernel.org> Cc: linux-metag@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> --- This is dependent on patch 1. Please ack and I'll take or apply after 4.16-rc1. arch/metag/kernel/devtree.c | 14 -------------- 1 file changed, 14 deletions(-) diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c index 18dd7aea9fdc..6af749a64438 100644 --- a/arch/metag/kernel/devtree.c +++ b/arch/metag/kernel/devtree.c @@ -14,26 +14,12 @@ #include <linux/init.h> #include <linux/export.h> #include <linux/types.h> -#include <linux/bootmem.h> -#include <linux/memblock.h> -#include <linux/of.h> #include <linux/of_fdt.h> #include <asm/setup.h> #include <asm/page.h> #include <asm/mach/arch.h> -void __init early_init_dt_add_memory_arch(u64 base, u64 size) -{ - pr_err("%s(%llx, %llx)\n", - __func__, base, size); -} - -void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) -{ - return alloc_bootmem_align(size, align); -} - static const void * __init arch_get_next_mach(const char *const **match) { static const struct machine_desc *mdesc = __arch_info_begin; -- 2.14.1 ^ permalink raw reply related [flat|nested] 7+ messages in thread
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2018-01-05 23:14 [PATCH 0/7] DT: consolidate bootmem support Rob Herring
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2018-01-05 23:14 ` [PATCH 1/7] of/fdt: use memblock_virt_alloc for early alloc Rob Herring
2018-01-05 23:14 ` Rob Herring
2018-01-05 23:14 ` [PATCH 2/7] cris: remove arch specific early DT functions Rob Herring
2018-01-05 23:14 ` [PATCH 3/7] metag: " Rob Herring
2018-01-05 23:14 ` [PATCH 4/7] mips: remove arch specific early_init_dt_alloc_memory_arch Rob Herring
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