linux-kernel - [PATCH v2 0/6] selftests/x86: fix build errors and warnings found via clang

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Date: Mon, 27 May 2024 14:00:36 -0700
From: John Hubbard <jhubbard@...dia.com>
To: Shuah Khan <shuah@...nel.org>
Cc: angquan yu <angquan21@...il.com>,
	"Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
	Ingo Molnar <mingo@...nel.org>,
	Binbin Wu <binbin.wu@...ux.intel.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Rick Edgecombe <rick.p.edgecombe@...el.com>,
	Sohil Mehta <sohil.mehta@...el.com>,
	Yu-cheng Yu <yu-cheng.yu@...el.com>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	Valentin Obst <kernel@...entinobst.de>,
	linux-kselftest@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>,
	llvm@...ts.linux.dev,
	x86@...nel.org,
	John Hubbard <jhubbard@...dia.com>
Subject: [PATCH v2 0/6] selftests/x86: fix build errors and warnings found via clang

Hi,

Just a bunch of build and warnings fixes that show up when
building with clang. Some of these depend on each other, so
I'm sending them as a series.

Changes since the first version:

1) Rebased onto Linux 6.10-rc1

Enjoy!

thanks,
John Hubbard

John Hubbard (6):
  selftests/x86: build test_FISTTP.c with clang
  selftests/x86: build fsgsbase_restore.c with clang
  selftests/x86: build sysret_rip.c with clang
  selftests/x86: avoid -no-pie warnings from clang during compilation
  selftests/x86: remove (or use) unused variables and functions
  selftests/x86: fix printk warnings reported by clang

 tools/testing/selftests/x86/Makefile          | 10 +++++++
 tools/testing/selftests/x86/amx.c             | 16 -----------
 .../testing/selftests/x86/clang_helpers_32.S  | 11 ++++++++
 .../testing/selftests/x86/clang_helpers_64.S  | 28 +++++++++++++++++++
 tools/testing/selftests/x86/fsgsbase.c        |  6 ----
 .../testing/selftests/x86/fsgsbase_restore.c  | 11 ++++----
 tools/testing/selftests/x86/sigreturn.c       |  2 +-
 .../testing/selftests/x86/syscall_arg_fault.c |  1 -
 tools/testing/selftests/x86/sysret_rip.c      | 20 ++++---------
 tools/testing/selftests/x86/test_FISTTP.c     |  8 +++---
 tools/testing/selftests/x86/test_vsyscall.c   | 15 ++++------
 tools/testing/selftests/x86/vdso_restorer.c   |  2 ++
 12 files changed, 72 insertions(+), 58 deletions(-)
 create mode 100644 tools/testing/selftests/x86/clang_helpers_32.S
 create mode 100644 tools/testing/selftests/x86/clang_helpers_64.S


base-commit: 2bfcfd584ff5ccc8bb7acde19b42570414bf880b
prerequisite-patch-id: 39d606b9b165077aa1a3a3b0a3b396dba0c20070
-- 
2.45.1