[PATCH] perf/arm_cspmu: Fix missing io.h include

[Robin Murphy]

Adding the writel() calls needs io.h, which apparently gets
transiently included somewhere on arm64, but not elsewhere.

Fixes: 6de0298a3925 ("perf/arm_cspmu: Generalise event filtering")
Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503150649.Dol8RBSh-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202503152245.cAG4FMfi-lkp@intel.com/
Signed-off-by: Robin Murphy <robin.murphy at arm.com>
---
 drivers/perf/arm_cspmu/nvidia_cspmu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/perf/arm_cspmu/nvidia_cspmu.c b/drivers/perf/arm_cspmu/nvidia_cspmu.c
index 4d5c4912c68f..0a7e316fb999 100644
--- a/drivers/perf/arm_cspmu/nvidia_cspmu.c
+++ b/drivers/perf/arm_cspmu/nvidia_cspmu.c
@@ -6,6 +6,7 @@
 
 /* Support for NVIDIA specific attributes. */
 
+#include <linux/io.h>
 #include <linux/module.h>
 #include <linux/topology.h>
 
-- 
2.39.2.101.g768bb238c484.dirty