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| author | Arvind Sankar <nivedita@alum.mit.edu> | 2020-07-28 18:57:17 -0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2020-07-31 11:08:17 +0200 |
| commit | eb38be6db516fb72ccf7282628b545a185b3bc7a (patch) | |
| tree | 58a66e171b6ae4fdba562ccc3b26c941fc6e3c6a /lib/mpi/mpi-cmp.c | |
| parent | 46a5b29a4a63a3ba987cbb5467774a4b5787618e (diff) | |
x86/kaslr: Drop unnecessary alignment in find_random_virt_addr()
Drop unnecessary alignment of image_size to CONFIG_PHYSICAL_ALIGN in
find_random_virt_addr, it cannot change the result: the largest valid
slot is the largest n that satisfies
minimum + n * CONFIG_PHYSICAL_ALIGN + image_size <= KERNEL_IMAGE_SIZE
(since minimum is already aligned) and so n is equal to
(KERNEL_IMAGE_SIZE - minimum - image_size) / CONFIG_PHYSICAL_ALIGN
even if image_size is not aligned to CONFIG_PHYSICAL_ALIGN.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20200728225722.67457-17-nivedita@alum.mit.edu
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions