From: Niklas Schnelle <schnelle@linux.ibm.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
clang-built-linux@googlegroups.com, linux-arch@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH v2 1/2] sparc: explicitly set PCI_IOBASE to 0
Date: Thu, 15 Apr 2021 14:36:59 +0200 [thread overview]
Message-ID: <20210415123700.3030728-2-schnelle@linux.ibm.com> (raw)
In-Reply-To: <20210415123700.3030728-1-schnelle@linux.ibm.com>
Instead of relying on the fallback in asm-generic/io.h which sets
PCI_IOBASE 0 if it is not defined set it explicitly.
Link: https://lore.kernel.org/lkml/CAK8P3a3PK9zyeP4ymELtc2ZYnymECoACiigw9Za+pvSJpCk5=g@mail.gmail.com/
Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
---
arch/sparc/include/asm/io.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/sparc/include/asm/io.h b/arch/sparc/include/asm/io.h
index 2eefa526b38f..100992ba1317 100644
--- a/arch/sparc/include/asm/io.h
+++ b/arch/sparc/include/asm/io.h
@@ -1,6 +1,10 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef ___ASM_SPARC_IO_H
#define ___ASM_SPARC_IO_H
+
+/* On LEON I/O Space is accessed through low iomem */
+#define PCI_IOBASE ((void __iomem *)0)
+
#if defined(__sparc__) && defined(__arch64__)
#include <asm/io_64.h>
#else
--
2.25.1
next prev parent reply other threads:[~2021-04-15 12:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 12:36 [PATCH v2 0/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Niklas Schnelle
2021-04-15 12:36 ` Niklas Schnelle [this message]
2021-04-15 16:10 ` [PATCH v2 1/2] sparc: explicitly set PCI_IOBASE to 0 David Laight
2021-04-15 12:37 ` [PATCH v2 2/2] asm-generic/io.h: Silence -Wnull-pointer-arithmetic warning on PCI_IOBASE Niklas Schnelle
2021-04-15 15:45 ` kernel test robot
2021-04-15 16:26 ` kernel test robot
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