riscv: read-only pages should not be writable
authorHeinrich Schuchardt <heinrich.schuchardt@canonical.com>
Sat, 28 May 2022 01:41:32 +0000 (03:41 +0200)
committerArd Biesheuvel <ardb@kernel.org>
Sat, 28 May 2022 09:39:31 +0000 (11:39 +0200)
commit630f972d76d6460235e84e1aa034ee06f9c8c3a9
tree0740cd597fd3cf9325fdaffe1452f055c04688a3
parent3f68e69520d3d52d66a6ad872a75b7d8f2ea7665
riscv: read-only pages should not be writable

If EFI pages are marked as read-only,
we should remove the _PAGE_WRITE flag.

The current code overwrites an unused value.

Fixes: b91540d52a08b ("RISC-V: Add EFI runtime services")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Link: https://lore.kernel.org/r/20220528014132.91052-1-heinrich.schuchardt@canonical.com
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
arch/riscv/kernel/efi.c