This is a note to let you know that I've just added the patch titled of: alloc anywhere from memblock if range not specified to the 4.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: of-alloc-anywhere-from-memblock-if-range-not-specified.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From e53b50c0cbe392c946807abf7d07615a3c588642 Mon Sep 17 00:00:00 2001 From: Vinayak Menon <vinmenon@xxxxxxxxxxxxxx> Date: Mon, 22 Feb 2016 19:15:44 +0530 Subject: of: alloc anywhere from memblock if range not specified From: Vinayak Menon <vinmenon@xxxxxxxxxxxxxx> commit e53b50c0cbe392c946807abf7d07615a3c588642 upstream. early_init_dt_alloc_reserved_memory_arch passes end as 0 to __memblock_alloc_base, when limits are not specified. But __memblock_alloc_base takes end value of 0 as MEMBLOCK_ALLOC_ACCESSIBLE and limits the end to memblock.current_limit. This results in regions never being placed in HIGHMEM area, for e.g. CMA. Let __memblock_alloc_base allocate from anywhere in memory if limits are not specified. Acked-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Signed-off-by: Vinayak Menon <vinmenon@xxxxxxxxxxxxxx> Signed-off-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/of/of_reserved_mem.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/drivers/of/of_reserved_mem.c +++ b/drivers/of/of_reserved_mem.c @@ -32,11 +32,13 @@ int __init __weak early_init_dt_alloc_re phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap, phys_addr_t *res_base) { + phys_addr_t base; /* * We use __memblock_alloc_base() because memblock_alloc_base() * panic()s on allocation failure. */ - phys_addr_t base = __memblock_alloc_base(size, align, end); + end = !end ? MEMBLOCK_ALLOC_ANYWHERE : end; + base = __memblock_alloc_base(size, align, end); if (!base) return -ENOMEM; Patches currently in stable-queue which might be from vinmenon@xxxxxxxxxxxxxx are queue-4.5/of-alloc-anywhere-from-memblock-if-range-not-specified.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html