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Message-Id: <20240816-dcd-type2-upstream-v3-12-7c9b96cba6d7@intel.com>
Date: Fri, 16 Aug 2024 09:44:20 -0500
From: Ira Weiny <ira.weiny@...el.com>
To: Dave Jiang <dave.jiang@...el.com>, Fan Ni <fan.ni@...sung.com>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Navneet Singh <navneet.singh@...el.com>, Chris Mason <clm@...com>,
Josef Bacik <josef@...icpanda.com>, David Sterba <dsterba@...e.com>,
Petr Mladek <pmladek@...e.com>, Steven Rostedt <rostedt@...dmis.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Sergey Senozhatsky <senozhatsky@...omium.org>,
Jonathan Corbet <corbet@....net>, Andrew Morton <akpm@...ux-foundation.org>
Cc: Dan Williams <dan.j.williams@...el.com>,
Davidlohr Bueso <dave@...olabs.net>,
Alison Schofield <alison.schofield@...el.com>,
Vishal Verma <vishal.l.verma@...el.com>, Ira Weiny <ira.weiny@...el.com>,
linux-btrfs@...r.kernel.org, linux-cxl@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
nvdimm@...ts.linux.dev
Subject: [PATCH v3 12/25] cxl/region: Refactor common create region code
create_pmem_region_store() and create_ram_region_store() are identical
with the exception of the region mode. With the addition of DC region
mode this would end up being 3 copies of the same code.
Refactor create_pmem_region_store() and create_ram_region_store() to use
a single common function to be used in subsequent DC code.
Suggested-by: Fan Ni <fan.ni@...sung.com>
Signed-off-by: Ira Weiny <ira.weiny@...el.com>
---
drivers/cxl/core/region.c | 28 +++++++++++-----------------
1 file changed, 11 insertions(+), 17 deletions(-)
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 650fe33f2ed4..f85b26b39b2f 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -2553,9 +2553,8 @@ static struct cxl_region *__create_region(struct cxl_root_decoder *cxlrd,
return devm_cxl_add_region(cxlrd, id, mode, CXL_DECODER_HOSTONLYMEM);
}
-static ssize_t create_pmem_region_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t len)
+static ssize_t create_region_store(struct device *dev, const char *buf,
+ size_t len, enum cxl_region_mode mode)
{
struct cxl_root_decoder *cxlrd = to_cxl_root_decoder(dev);
struct cxl_region *cxlr;
@@ -2565,31 +2564,26 @@ static ssize_t create_pmem_region_store(struct device *dev,
if (rc != 1)
return -EINVAL;
- cxlr = __create_region(cxlrd, CXL_REGION_PMEM, id);
+ cxlr = __create_region(cxlrd, mode, id);
if (IS_ERR(cxlr))
return PTR_ERR(cxlr);
return len;
}
+
+static ssize_t create_pmem_region_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t len)
+{
+ return create_region_store(dev, buf, len, CXL_REGION_PMEM);
+}
DEVICE_ATTR_RW(create_pmem_region);
static ssize_t create_ram_region_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t len)
{
- struct cxl_root_decoder *cxlrd = to_cxl_root_decoder(dev);
- struct cxl_region *cxlr;
- int rc, id;
-
- rc = sscanf(buf, "region%d\n", &id);
- if (rc != 1)
- return -EINVAL;
-
- cxlr = __create_region(cxlrd, CXL_REGION_RAM, id);
- if (IS_ERR(cxlr))
- return PTR_ERR(cxlr);
-
- return len;
+ return create_region_store(dev, buf, len, CXL_REGION_RAM);
}
DEVICE_ATTR_RW(create_ram_region);
--
2.45.2
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