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riscv: mm: mark noncoherent_supported as __ro_after_init

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The noncoherent_supported indicates whether the HW is coherent or not,
it won't change after booting, mark it as __ro_after_init.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230614165504.532-4-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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Jisheng Zhang 2023-06-15 00:55:04 +08:00 committed by Palmer Dabbelt
parent 3b472f860c
commit 8500808a99
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1 changed files with 1 additions and 1 deletions
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arch/riscv/mm/dma-noncoherent.c
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@ -10,7 +10,7 @@
#include <linux/mm.h>
#include <asm/cacheflush.h>
static bool noncoherent_supported;
static bool noncoherent_supported __ro_after_init;
void arch_sync_dma_for_device(phys_addr_t paddr, size_t size,
enum dma_data_direction dir)