Patch "ACPICA: OSL: Add support to exclude stdarg.h" has been added to the 4.9-stable tree

Patch "ACPICA: OSL: Add support to exclude stdarg.h" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    ACPICA: OSL: Add support to exclude stdarg.h

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     acpica-osl-add-support-to-exclude-stdarg.h.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Mon Apr  9 17:09:24 CEST 2018
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 5 Jun 2017 16:39:56 +0800
Subject: ACPICA: OSL: Add support to exclude stdarg.h

From: Lv Zheng <lv.zheng@intel.com>


[ Upstream commit 84676b87b27d8aefafb9f712a5b444938f284513 ]

ACPICA commit e2df7455a9a4301b03668e4c9c02c7a564cc841c

Some hosts may choose not to include stdarg.h, implementing a
configurability in acgcc.h, allowing OSen like Solaris to exclude stdarg.h.
This patch also fixes acintel.h accordingly without providing builtin
support as Intel compiler is similar as GCC. Reported by Dana Myers, fixed
by Lv Zheng.

Link: https://github.com/acpica/acpica/commit/e2df7455
Reported-by: Dana Myers <dana.myers@oracle.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/acpi/platform/acgcc.h   |   10 ++++++++++
 include/acpi/platform/acintel.h |    2 ++
 2 files changed, 12 insertions(+)

--- a/include/acpi/platform/acgcc.h
+++ b/include/acpi/platform/acgcc.h
@@ -48,7 +48,17 @@
  * Use compiler specific <stdarg.h> is a good practice for even when
  * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
  */
+#ifndef va_arg
+#ifdef ACPI_USE_BUILTIN_STDARG
+typedef __builtin_va_list va_list;
+#define va_start(v, l)          __builtin_va_start(v, l)
+#define va_end(v)               __builtin_va_end(v)
+#define va_arg(v, l)            __builtin_va_arg(v, l)
+#define va_copy(d, s)           __builtin_va_copy(d, s)
+#else
 #include <stdarg.h>
+#endif
+#endif
 
 #define ACPI_INLINE             __inline__
 
--- a/include/acpi/platform/acintel.h
+++ b/include/acpi/platform/acintel.h
@@ -48,7 +48,9 @@
  * Use compiler specific <stdarg.h> is a good practice for even when
  * -nostdinc is specified (i.e., ACPI_USE_STANDARD_HEADERS undefined.
  */
+#ifndef va_arg
 #include <stdarg.h>
+#endif
 
 /* Configuration specific to Intel 64-bit C compiler */
 


Patches currently in stable-queue which might be from lv.zheng@intel.com are

queue-4.9/acpica-disassembler-abort-on-an-invalid-unknown-aml-opcode.patch
queue-4.9/acpica-events-add-runtime-stub-support-for-event-apis.patch
queue-4.9/acpica-osl-add-support-to-exclude-stdarg.h.patch