The patch titled
Subject: resource: split DEFINE_RES_NAMED_DESC() out of DEFINE_RES_NAMED()
has been added to the -mm mm-nonmm-unstable branch. Its filename is
resource-split-define_res_named_desc-out-of-define_res_named.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/resource-split-define_res_named_desc-out-of-define_res_named.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Subject: resource: split DEFINE_RES_NAMED_DESC() out of DEFINE_RES_NAMED()
Date: Mon, 17 Mar 2025 20:11:10 +0200
Patch series "resource: Split and use DEFINE_RES*() macros", v2.
Replace open coded variants of DEFINE_RES*() macros.
Note, there are many more possibilities over the kernel and even in
reources.c, however the latter contains not so trivial leftovers. That's
why the examples cover only straightforward conversions.
This patch (of 4):
In some cases it would be useful to supply predefined descriptor of the
resource. For this, introduce DEFINE_RES_NAMED_DESC() macro.
While at it, provide DEFINE_RES() that takes only start, size,
and flags.
Link: https://lkml.kernel.org/r/20250317181412.1560630-1-andriy.shevchenko@xxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/20250317181412.1560630-2-andriy.shevchenko@xxxxxxxxxxxxxxx
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/ioport.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/include/linux/ioport.h~resource-split-define_res_named_desc-out-of-define_res_named
+++ a/include/linux/ioport.h
@@ -154,15 +154,20 @@ enum {
};
/* helpers to define resources */
-#define DEFINE_RES_NAMED(_start, _size, _name, _flags) \
+#define DEFINE_RES_NAMED_DESC(_start, _size, _name, _flags, _desc) \
(struct resource) { \
.start = (_start), \
.end = (_start) + (_size) - 1, \
.name = (_name), \
.flags = (_flags), \
- .desc = IORES_DESC_NONE, \
+ .desc = (_desc), \
}
+#define DEFINE_RES_NAMED(_start, _size, _name, _flags) \
+ DEFINE_RES_NAMED_DESC(_start, _size, _name, _flags, IORES_DESC_NONE)
+#define DEFINE_RES(_start, _size, _flags) \
+ DEFINE_RES_NAMED(_start, _size, NULL, _flags)
+
#define DEFINE_RES_IO_NAMED(_start, _size, _name) \
DEFINE_RES_NAMED((_start), (_size), (_name), IORESOURCE_IO)
#define DEFINE_RES_IO(_start, _size) \
_
Patches currently in -mm which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
resource-split-define_res_named_desc-out-of-define_res_named.patch
resource-replace-open-coded-variant-of-define_res_named_desc.patch
resource-replace-open-coded-variants-of-define_res__named.patch
resource-replace-open-coded-variant-of-define_res.patch
