4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ivan Gorinov ivan.gorinov@intel.com
[ Upstream commit 628df9dc5ad886b0a9b33c75a7b09710eb859ca1 ]
Commit 08d53aa58cb1 added CRC32 calculation in early_init_dt_verify() and checking in late initcall of_fdt_raw_init(), making early_init_dt_verify() mandatory.
The required call to early_init_dt_verify() was not added to the x86-specific implementation, causing failure to create the sysfs entry in of_fdt_raw_init().
Fixes: 08d53aa58cb1 ("of/fdt: export fdt blob as /sys/firmware/fdt") Signed-off-by: Ivan Gorinov ivan.gorinov@intel.com Signed-off-by: Thomas Gleixner tglx@linutronix.de Cc: Mark Rutland mark.rutland@arm.com Cc: Rob Herring robh+dt@kernel.org Link: https://lkml.kernel.org/r/c8c7e941efc63b5d25ebf9b6350b0f3df38f6098.152045075... Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/x86/kernel/devicetree.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
--- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -11,6 +11,7 @@ #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/of_irq.h> +#include <linux/libfdt.h> #include <linux/slab.h> #include <linux/pci.h> #include <linux/of_pci.h> @@ -276,14 +277,15 @@ static void __init x86_flattree_get_conf
map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK), (u64)128);
- initial_boot_params = dt = early_memremap(initial_dtb, map_len); - size = of_get_flat_dt_size(); + dt = early_memremap(initial_dtb, map_len); + size = fdt_totalsize(dt); if (map_len < size) { early_memunmap(dt, map_len); - initial_boot_params = dt = early_memremap(initial_dtb, size); + dt = early_memremap(initial_dtb, size); map_len = size; }
+ early_init_dt_verify(dt); unflatten_and_copy_device_tree(); early_memunmap(dt, map_len); }