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| author | Calvin Zhang <calvinzhang.cool@gmail.com> | 2022-01-14 23:04:08 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-15 15:30:25 +0100 |
| commit | 972fa3a7c17c9d60212e32ecc0205dc585b1e769 (patch) | |
| tree | af556f8049c34c04ccbe38490d4a1bd0c4edd1e6 /drivers/of/fdt.c | |
| parent | kmemleak: fix kmemleak false positive report with HW tag-based kasan enable (diff) | |
| download | linux-972fa3a7c17c9d60212e32ecc0205dc585b1e769.tar.xz linux-972fa3a7c17c9d60212e32ecc0205dc585b1e769.zip | |
mm: kmemleak: alloc gray object for reserved region with direct map
Reserved regions with direct mapping may contain references to other
regions. CMA region with fixed location is reserved without creating
kmemleak_object for it.
So add them as gray kmemleak objects.
Link: https://lkml.kernel.org/r/20211123090641.3654006-1-calvinzhang.cool@gmail.com
Signed-off-by: Calvin Zhang <calvinzhang.cool@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/of/fdt.c')
| -rw-r--r-- | drivers/of/fdt.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index bdca35284ceb..116c582fea7a 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -26,6 +26,7 @@ #include <linux/serial_core.h> #include <linux/sysfs.h> #include <linux/random.h> +#include <linux/kmemleak.h> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */ #include <asm/page.h> @@ -522,9 +523,12 @@ static int __init __reserved_mem_reserve_reg(unsigned long node, size = dt_mem_next_cell(dt_root_size_cells, &prop); if (size && - early_init_dt_reserve_memory_arch(base, size, nomap) == 0) + early_init_dt_reserve_memory_arch(base, size, nomap) == 0) { pr_debug("Reserved memory: reserved region for node '%s': base %pa, size %lu MiB\n", uname, &base, (unsigned long)(size / SZ_1M)); + if (!nomap) + kmemleak_alloc_phys(base, size, 0, 0); + } else pr_info("Reserved memory: failed to reserve memory for node '%s': base %pa, size %lu MiB\n", uname, &base, (unsigned long)(size / SZ_1M)); |