diff options
| author | Nicolas Pitre <[email protected]> | 2015-01-27 15:10:42 +0000 |
|---|---|---|
| committer | Russell King <[email protected]> | 2015-01-29 15:23:01 +0000 |
| commit | c2607f74aad96d18316a6e709b40e0ffe9def148 (patch) | |
| tree | 7ca8b21b5631d9fe31faa075544cfe1c26db5f3f /lib/string_helpers.c | |
| parent | ARM: 8288/1: dma-mapping: don't detach devices without an IOMMU during teardown (diff) | |
| download | kernel-c2607f74aad96d18316a6e709b40e0ffe9def148.tar.gz kernel-c2607f74aad96d18316a6e709b40e0ffe9def148.zip | |
ARM: 8294/1: ATAG_DTB_COMPAT: remove the DT workspace's hardcoded 64KB size
There is currently a hardcoded limit of 64KB for the DTB to live in and
be extended with ATAG info. Some DTBs have outgrown that limit:
$ du -b arch/arm/boot/dts/omap3-n900.dtb
70212 arch/arm/boot/dts/omap3-n900.dtb
Furthermore, the actual size passed to atags_to_fdt() included the stack
size which is obviously wrong.
The initial DTB size is known, so use it to size the allocated workspace
with a 50% growth assumption and relocate the temporary stack above that.
This is also clamped to 32KB min / 1MB max for robustness against bad
DTB data.
Reported-by: Pali Rohár <[email protected]>
Tested-by: Pavel Machek <[email protected]>
Signed-off-by: Nicolas Pitre <[email protected]>
Signed-off-by: Russell King <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions