riscv: Consistify protect_kernel_linear_mapping_text_rodata() use

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The various uses of protect_kernel_linear_mapping_text_rodata() are
not consistent:
  - Its definition depends on "64BIT && !XIP_KERNEL",
  - Its forward declaration depends on MMU,
  - Its single caller depends on "STRICT_KERNEL_RWX && 64BIT && MMU &&
    !XIP_KERNEL".

Fix this by settling on the dependencies of the caller, which can be
simplified as STRICT_KERNEL_RWX depends on "MMU && !XIP_KERNEL".
Provide a dummy definition, as the caller is protected by
"IS_ENABLED(CONFIG_STRICT_KERNEL_RWX)" instead of "#ifdef
CONFIG_STRICT_KERNEL_RWX".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Alexandre Ghiti <alex@ghiti.fr>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>

...

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Geert Uytterhoeven 2021-04-29 17:10:04 +02:00 • committed by Palmer Dabbelt

parent 0e0d499251

commit 8d91b09733

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3 changed files with 7 additions and 4 deletions

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7

arch/riscv/include/asm/set_memory.h

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2

arch/riscv/kernel/setup.c

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2

arch/riscv/mm/init.c

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