AARCH64:fix variable name collision with register name

The variable name is g which is collision with the reserved name
for R28. This leads to bazel build failure on ARM with following
information:
(register+register) not supported on this architecture

rename it from g to ptr (referenced from golang source
code)

Signed-off-by: Howard Zhang <howard.zhang@arm.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/pkg/syncevent/waiter_noasm_unsafe.go b/pkg/syncevent/waiter_noasm_unsafe.go
index 1c4b0e39a..0f74a689c 100644
--- a/pkg/syncevent/waiter_noasm_unsafe.go
+++ b/pkg/syncevent/waiter_noasm_unsafe.go
@@ -32,8 +32,8 @@ import (
 // should be aborted.
 //
 //go:nosplit
-func waiterUnlock(g unsafe.Pointer, wg *unsafe.Pointer) bool {
+func waiterUnlock(ptr unsafe.Pointer, wg *unsafe.Pointer) bool {
 	// The only way this CAS can fail is if a call to Waiter.NotifyPending()
 	// has replaced *wg with nil, in which case we should not sleep.
-	return atomic.CompareAndSwapPointer(wg, (unsafe.Pointer)(&preparingG), g)
+	return atomic.CompareAndSwapPointer(wg, (unsafe.Pointer)(&preparingG), ptr)
 }