__late_set_fixmap() and __late_clear_fixmap() are only used after
early_ioremap_reset() has been called, but the comment above them does
not say anything about that. So arm64, riscv and powerpc, whose
__set_fixmap() works before and after paging_init(), describe the same
situation in three different ways:
calls reset defines the macros
arm64 yes yes
riscv no yes
powerpc no no
Patch 1 documents when early_ioremap_reset() needs to be called and
that only architectures calling it need to define the macros.
Patches 2 and 3 remove the unneeded riscv macros, which are
unreachable, and the arm64 reset call and macros, which change
nothing.
No functional change.
Sang-Heon Jeon (3):
mm/early_ioremap: clarify early_ioremap_reset() semantics
riscv: remove unused __late_set_fixmap() and __late_clear_fixmap()
arm64: remove early_ioremap_reset() call and __late_* macros
arch/arm64/include/asm/fixmap.h | 3 ---
arch/arm64/kernel/setup.c | 2 --
arch/riscv/include/asm/fixmap.h | 3 ---
mm/early_ioremap.c | 10 +++++++---
4 files changed, 7 insertions(+), 11 deletions(-)
--
2.43.0
