Merge tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipgrafted

Pull futex fix from Ingo Molnar:

 - Also allocate a default private futex hash on vfork() as well, to
   avoid races with (private) futex waiters (Peter Zijlstra)

* tag 'locking-urgent-2026-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Also allocate private hash on vfork()

1 files changed, 17 insertions, 0 deletions

diff --git a/arch/powerpc/boot/stdio.h b/arch/powerpc/boot/stdio.h
new file mode 100644
index 000000000..d5a7a0f54
--- /dev/null
+++ b/arch/powerpc/boot/stdio.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PPC_BOOT_STDIO_H_
+#define _PPC_BOOT_STDIO_H_
+
+#include <stdarg.h>
+
+#define	ENOMEM		12	/* Out of Memory */
+#define	EINVAL		22	/* Invalid argument */
+#define ENOSPC		28	/* No space left on device */
+
+extern int printf(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
+
+#define fprintf(fmt, args...)	printf(args)
+
+extern int vsprintf(char *buf, const char *fmt, va_list args);
+
+#endif				/* _PPC_BOOT_STDIO_H_ */