History log of /linux/arch/openrisc/kernel/patching.c (Results 1 – 2 of 2)
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# 742adaa1 05-Oct-2025 Linus Torvalds <torvalds@linux-foundation.org>

Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
"I picked up one series from Chen Miao, our Google Summer of Code
contributor, which adds Ope

Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
"I picked up one series from Chen Miao, our Google Summer of Code
contributor, which adds OpenRISC support for static keys"

* tag 'for-linus' of https://github.com/openrisc/linux:
openrisc: Add jump label support
openrisc: Regenerate defconfigs.
openrisc: Add R_OR1K_32_PCREL relocation type module support
openrisc: Add text patching API support

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Revision tags: v6.17, v6.17-rc7, v6.17-rc6, v6.17-rc5
# 4735037b 05-Sep-2025 chenmiao <chenmiao.ku@gmail.com>

openrisc: Add text patching API support

Add text patching api's to use in subsequent jump_label implementation. We use
a new fixmap FIX_TEXT_POKE0 entry to temporarily override MMU mappings to allo

openrisc: Add text patching API support

Add text patching api's to use in subsequent jump_label implementation. We use
a new fixmap FIX_TEXT_POKE0 entry to temporarily override MMU mappings to allow
read only text pages to be written to.

Previously, __set_fix was marked with __init as it was only used during the
EARLYCON stage. Now that TEXT_POKE mappings require post-init usage
(e.g., FIX_TEXT_POKE0), keeping __init would cause runtime bugs whenset_fixmap
accesses invalid memory. Thus, we remove the __init flag to ensure __set_fix
remains valid beyond initialization.

A new function patch_insn_write is exposed to allow single instruction patching.

Link: https://lore.kernel.org/openrisc/aJIC8o1WmVHol9RY@antec/T/#t

Signed-off-by: chenmiao <chenmiao.ku@gmail.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>

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