diff mbox series

[3/6] riscv: mm: mark noncoherent_supported as __ro_after_init

Message ID 20230526165958.908-4-jszhang@kernel.org
State New
Headers
Series riscv: Reduce ARCH_KMALLOC_MINALIGN to 8 |

Commit Message

Jisheng Zhang May 26, 2023, 4:59 p.m. UTC 
  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>
---
 arch/riscv/mm/dma-noncoherent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Conor Dooley May 29, 2023, 10:53 a.m. UTC | #1 
On Sat, May 27, 2023 at 12:59:55AM +0800, Jisheng Zhang wrote:
> 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>

Thanks,
Conor.
diff mbox series

Patch

diff --git a/arch/riscv/mm/dma-noncoherent.c b/arch/riscv/mm/dma-noncoherent.c
index d919efab6eba..d51a75864e53 100644
--- a/arch/riscv/mm/dma-noncoherent.c
+++ b/arch/riscv/mm/dma-noncoherent.c
@@ -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)