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COOLING10d REVIEWED: 14 (14M)

Revision v2 of 2 in this series; 1 review trailer.

Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 10/15] powerpc: Remove AT_VECTOR_SIZE_ARCH from UAPI

From: Thomas Weißschuh <hidden>
Date: 2026-09-03 07:41:36
Also in: linux-alpha, linux-arch, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linuxppc-dev, lkml, loongarch, sparclinux
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

There is nothing userspace can do with this value. In the kernel is
always combined with AT_VECTOR_SIZE_BASE, which is not exposed to
userspace and also changes from time to time.

Move the symbol to a kernel-internal header.

Signed-off-by: Thomas Weißschuh <redacted>
Reviewed-by: Kees Cook <kees@kernel.org>
---
 arch/powerpc/include/asm/auxvec.h      | 7 +++++++
 arch/powerpc/include/uapi/asm/auxvec.h | 6 ++----
 2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/include/asm/auxvec.h b/arch/powerpc/include/asm/auxvec.h
new file mode 100644
index 000000000000..d6c180e9ac2c
--- /dev/null
+++ b/arch/powerpc/include/asm/auxvec.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_AUXVEC_H
+#define _ASM_POWERPC_AUXVEC_H
+
+#define AT_VECTOR_SIZE_ARCH	15 /* entries in ARCH_DLINFO */
+
+#endif
diff --git a/arch/powerpc/include/uapi/asm/auxvec.h b/arch/powerpc/include/uapi/asm/auxvec.h
index aa7c16215453..9ab5b6d17929 100644
--- a/arch/powerpc/include/uapi/asm/auxvec.h
+++ b/arch/powerpc/include/uapi/asm/auxvec.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-#ifndef _ASM_POWERPC_AUXVEC_H
-#define _ASM_POWERPC_AUXVEC_H
+#ifndef _UAPI_ASM_POWERPC_AUXVEC_H
+#define _UAPI_ASM_POWERPC_AUXVEC_H
 
 /*
  * We need to put in some extra aux table entries to tell glibc what
@@ -50,6 +50,4 @@
 
 #define AT_MINSIGSTKSZ		51      /* stack needed for signal delivery */
 
-#define AT_VECTOR_SIZE_ARCH	15 /* entries in ARCH_DLINFO */
-
 #endif
-- 
2.55.0

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