From: Frank Li <Frank.Li@nxp.com>
To: Arnd Bergmann <arnd@arndb.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Niklas Schnelle <schnelle@linux.ibm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Alexei Starovoitov <ast@kernel.org>,
Kent Overstreet <kent.overstreet@linux.dev>,
linux-kernel@vger.kernel.org (open list)
Cc: imx@lists.linux.dev
Subject: [PATCH 1/1] linux/io.h: Add cleanup defination for iounmap() and memunmap()
Date: Wed, 31 Jul 2024 19:31:44 -0400 [thread overview]
Message-ID: <20240731233145.2485874-1-Frank.Li@nxp.com> (raw)
Add DEFINE_FREE for iounmap() and memunmap() to support scope based
cleanup.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
include/linux/io.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/io.h b/include/linux/io.h
index 59ec5eea696c4..7695d7973c8ff 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -163,6 +163,9 @@ enum {
void *memremap(resource_size_t offset, size_t size, unsigned long flags);
void memunmap(void *addr);
+DEFINE_FREE(iounmap, void __iomem *, if (!IS_ERR_OR_NULL(_T)) iounmap(_T))
+DEFINE_FREE(memunmap, void *, if (!IS_ERR_OR_NULL(_T)) memunmap(_T))
+
/*
* On x86 PAT systems we have memory tracking that keeps track of
* the allowed mappings on memory ranges. This tracking works for
--
2.34.1
next reply other threads:[~2024-07-31 23:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-31 23:31 Frank Li [this message]
2024-08-01 7:27 ` Arnd Bergmann
2024-08-01 15:15 ` Frank Li
2024-08-02 8:07 ` Arnd Bergmann
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