[PATCH] riscv: time: Add missing __iomem in get_cycles() and get_cycles_hi()

Nam Cao posted 1 patch 1 week, 2 days ago
arch/riscv/include/asm/timex.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
[PATCH] riscv: time: Add missing __iomem in get_cycles() and get_cycles_hi()
Posted by Nam Cao 1 week, 2 days ago
__iomem is missing while calling readl_relaxed() in get_cycles() and
get_cycles_hi() and sparse complains.

Add __iomem to silence the sparse warnings.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607160619.14G8GHp5-lkp@intel.com/
Signed-off-by: Nam Cao <namcao@linutronix.de>
---
 arch/riscv/include/asm/timex.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/include/asm/timex.h b/arch/riscv/include/asm/timex.h
index a06697846e69..d41acfb3959d 100644
--- a/arch/riscv/include/asm/timex.h
+++ b/arch/riscv/include/asm/timex.h
@@ -22,13 +22,13 @@ static inline cycles_t get_cycles(void)
 #else /* !CONFIG_64BIT */
 static inline u32 get_cycles(void)
 {
-	return readl_relaxed(((u32 *)clint_time_val));
+	return readl_relaxed(((u32 __iomem *)clint_time_val));
 }
 #define get_cycles get_cycles
 
 static inline u32 get_cycles_hi(void)
 {
-	return readl_relaxed(((u32 *)clint_time_val) + 1);
+	return readl_relaxed(((u32 __iomem *)clint_time_val) + 1);
 }
 #define get_cycles_hi get_cycles_hi
 #endif /* CONFIG_64BIT */
-- 
2.47.3
Re: [PATCH] riscv: time: Add missing __iomem in get_cycles() and get_cycles_hi()
Posted by Paul Walmsley 5 days, 21 hours ago
On Thu, 16 Jul 2026, Nam Cao wrote:

> __iomem is missing while calling readl_relaxed() in get_cycles() and
> get_cycles_hi() and sparse complains.
> 
> Add __iomem to silence the sparse warnings.
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202607160619.14G8GHp5-lkp@intel.com/
> Signed-off-by: Nam Cao <namcao@linutronix.de>

Thanks, queued for v7.2-rc.

\
- Paul