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riscv: Replace function-like macro by static inline function

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[ Upstream commit 121f34341d396b666d8a90b24768b40e08ca0d61 ]

The flush_icache_range() function is implemented as a "function-like
macro with unused parameters", which can result in "unused variables"
warnings.

Replace the macro with a static inline function, as advised by
Documentation/process/coding-style.rst.

Fixes: 08f051eda3 ("RISC-V: Flush I$ when making a dirty page executable")
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Link: https://lore.kernel.org/r/20250419111402.1660267-1-bjorn@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Björn Töpel
2025-04-19 13:13:59 +02:00
committed by Greg Kroah-Hartman
parent e22010c3b8
commit 4715ab8435
1 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
arch/riscv/include/asm/cacheflush.h
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@@ -34,11 +34,6 @@ static inline void flush_dcache_page(struct page *page)
flush_dcache_folio(page_folio(page));
}
/*
* RISC-V doesn't have an instruction to flush parts of the instruction cache,
* so instead we just flush the whole thing.
*/
#define flush_icache_range(start, end) flush_icache_all()
#define flush_icache_user_page(vma, pg, addr, len) \
do { \
if (vma->vm_flags & VM_EXEC) \
@@ -78,6 +73,16 @@ void flush_icache_mm(struct mm_struct *mm, bool local);
#endif /* CONFIG_SMP */
/*
* RISC-V doesn't have an instruction to flush parts of the instruction cache,
* so instead we just flush the whole thing.
*/
#define flush_icache_range flush_icache_range
static inline void flush_icache_range(unsigned long start, unsigned long end)
{
flush_icache_all();
}
extern unsigned int riscv_cbom_block_size;
extern unsigned int riscv_cboz_block_size;
void riscv_init_cbo_blocksizes(void);