[PATCH] rust: uapi: replace direct asm-generic/ioctl.h include with linux/ioctl.h

[Mukesh Kumar Chaurasiya (IBM)]

rust/uapi/uapi_helper.h was directly including <uapi/asm-generic/ioctl.h>
instead of the proper <uapi/linux/ioctl.h>.

On powerpc, <uapi/linux/ioctl.h> pulls in <uapi/asm/ioctl.h> first, which
defines _IOC_SIZEBITS, _IOC_DIRBITS, _IOC_NONE, and _IOC_WRITE with the
arch-specific values, before falling through to <asm-generic/ioctl.h>.
By bypassing that chain and including <asm-generic/ioctl.h> directly,
the arch-specific overrides never ran first, so when other headers in
the compilation later brought in the full arch-aware chain, Clang saw
those four macros being defined a second time and emitted:

  uapi/asm-generic/ioctl.h: warning: '_IOC_SIZEBITS' macro redefined
  uapi/asm-generic/ioctl.h: warning: '_IOC_DIRBITS' macro redefined
  uapi/asm-generic/ioctl.h: warning: '_IOC_NONE' macro redefined
  uapi/asm-generic/ioctl.h: warning: '_IOC_WRITE' macro redefined

Fix this by replacing the direct include of <uapi/asm-generic/ioctl.h>
with <uapi/linux/ioctl.h>, which is the correct arch-aware entry point
and already maintains the intended include order.

Applies on linux-next.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202608050618.9dekfjtF-lkp@xxxxxxxxx/
Signed-off-by: Mukesh Kumar Chaurasiya (IBM) <mkchauras@xxxxxxxxx>
---
 rust/uapi/uapi_helper.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rust/uapi/uapi_helper.h b/rust/uapi/uapi_helper.h
index 86c7b6b284b0..489748ef642c 100644
--- a/rust/uapi/uapi_helper.h
+++ b/rust/uapi/uapi_helper.h
@@ -6,12 +6,12 @@
  * Sorted alphabetically.
  */
 
-#include <uapi/asm-generic/ioctl.h>
 #include <uapi/drm/drm.h>
 #include <uapi/drm/nova_drm.h>
 #include <uapi/drm/panthor_drm.h>
 #include <uapi/linux/android/binder.h>
 #include <uapi/linux/android/binder_netlink.h>
+#include <uapi/linux/ioctl.h>
 #include <uapi/linux/mdio.h>
 #include <uapi/linux/mii.h>
 #include <uapi/linux/ethtool.h>
-- 
2.55.0