From: Logan Gunthorpe <logang@deltatee.com>
To: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Cc: Logan Gunthorpe <logang@deltatee.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Sebastian Ott <sebott@linux.vnet.ibm.com>,
Al Viro <viro@ZenIV.linux.org.uk>
Subject: [PATCH v2] s390: provide default ioremap and iounmap declaration
Date: Mon, 29 May 2017 13:13:08 -0600 [thread overview]
Message-ID: <20170529191308.8499-1-logang@deltatee.com> (raw)
Move the CONFIG_PCI device so that ioremap and iounmap are always
available. This looks safe as there's nothing PCI specific in the
implementation of these functions.
I have designs to use these functions in scatterlist.c where they'd likely
never be called without CONFIG_PCI set, but this is needed to compile
such changes.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
---
v2 of this patch is changed to simply move the CONFIG_PCI #ifdef
to expose only a single set of functions as suggested by Heiko
Carstens.
arch/s390/include/asm/io.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 437e9af96688..904e4b3af95d 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -25,8 +25,6 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
#define IO_SPACE_LIMIT 0
-#ifdef CONFIG_PCI
-
#define ioremap_nocache(addr, size) ioremap(addr, size)
#define ioremap_wc ioremap_nocache
#define ioremap_wt ioremap_nocache
@@ -49,6 +47,8 @@ static inline void ioport_unmap(void __iomem *p)
{
}
+#ifdef CONFIG_PCI
+
/*
* s390 needs a private implementation of pci_iomap since ioremap with its
* offset parameter isn't sufficient. That's because BAR spaces are not
--
2.11.0
next reply other threads:[~2017-05-29 19:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-29 19:13 Logan Gunthorpe [this message]
2017-05-30 12:21 ` [PATCH v2] s390: provide default ioremap and iounmap declaration Sebastian Ott
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