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Date: Wed, 12 Jun 2019 09:00:11 +0800
From: Kefeng Wang <wangkefeng.wang@...wei.com>
To: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: Kefeng Wang <wangkefeng.wang@...wei.com>,
Stephen Boyd <swboyd@...omium.org>,
Rob Herring <robh@...nel.org>,
Frank Rowand <frowand.list@...il.com>
Subject: [PATCH next] of/fdt: Fix defined but not used compiler warning
When CONFIG_OF_EARLY_FLATTREE is disabled, there is a compiler warning,
drivers/of/fdt.c:129:19: warning: ‘of_fdt_match’ defined but not used [-Wunused-function]
static int __init of_fdt_match(const void *blob, unsigned long node,
Move of_fdt_match() and of_fdt_is_compatible() under CONFIG_OF_EARLY_FLATTREE
to fix it.
Cc: Stephen Boyd <swboyd@...omium.org>
Cc: Rob Herring <robh@...nel.org>
Cc: Frank Rowand <frowand.list@...il.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
drivers/of/fdt.c | 106 +++++++++++++++++++++++------------------------
1 file changed, 53 insertions(+), 53 deletions(-)
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 3d36b5afd9bd..d6afd5b22940 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -78,38 +78,6 @@ void __init of_fdt_limit_memory(int limit)
}
}
-/**
- * of_fdt_is_compatible - Return true if given node from the given blob has
- * compat in its compatible list
- * @blob: A device tree blob
- * @node: node to test
- * @compat: compatible string to compare with compatible list.
- *
- * On match, returns a non-zero value with smaller values returned for more
- * specific compatible values.
- */
-static int of_fdt_is_compatible(const void *blob,
- unsigned long node, const char *compat)
-{
- const char *cp;
- int cplen;
- unsigned long l, score = 0;
-
- cp = fdt_getprop(blob, node, "compatible", &cplen);
- if (cp == NULL)
- return 0;
- while (cplen > 0) {
- score++;
- if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
- return score;
- l = strlen(cp) + 1;
- cp += l;
- cplen -= l;
- }
-
- return 0;
-}
-
static bool of_fdt_device_is_available(const void *blob, unsigned long node)
{
const char *status = fdt_getprop(blob, node, "status", NULL);
@@ -123,27 +91,6 @@ static bool of_fdt_device_is_available(const void *blob, unsigned long node)
return false;
}
-/**
- * of_fdt_match - Return true if node matches a list of compatible values
- */
-static int __init of_fdt_match(const void *blob, unsigned long node,
- const char *const *compat)
-{
- unsigned int tmp, score = 0;
-
- if (!compat)
- return 0;
-
- while (*compat) {
- tmp = of_fdt_is_compatible(blob, node, *compat);
- if (tmp && (score == 0 || (tmp < score)))
- score = tmp;
- compat++;
- }
-
- return score;
-}
-
static void *unflatten_dt_alloc(void **mem, unsigned long size,
unsigned long align)
{
@@ -764,6 +711,59 @@ const void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
return fdt_getprop(initial_boot_params, node, name, size);
}
+/**
+ * of_fdt_is_compatible - Return true if given node from the given blob has
+ * compat in its compatible list
+ * @blob: A device tree blob
+ * @node: node to test
+ * @compat: compatible string to compare with compatible list.
+ *
+ * On match, returns a non-zero value with smaller values returned for more
+ * specific compatible values.
+ */
+static int of_fdt_is_compatible(const void *blob,
+ unsigned long node, const char *compat)
+{
+ const char *cp;
+ int cplen;
+ unsigned long l, score = 0;
+
+ cp = fdt_getprop(blob, node, "compatible", &cplen);
+ if (cp == NULL)
+ return 0;
+ while (cplen > 0) {
+ score++;
+ if (of_compat_cmp(cp, compat, strlen(compat)) == 0)
+ return score;
+ l = strlen(cp) + 1;
+ cp += l;
+ cplen -= l;
+ }
+
+ return 0;
+}
+
+/**
+ * of_fdt_match - Return true if node matches a list of compatible values
+ */
+static int __init of_fdt_match(const void *blob, unsigned long node,
+ const char *const *compat)
+{
+ unsigned int tmp, score = 0;
+
+ if (!compat)
+ return 0;
+
+ while (*compat) {
+ tmp = of_fdt_is_compatible(blob, node, *compat);
+ if (tmp && (score == 0 || (tmp < score)))
+ score = tmp;
+ compat++;
+ }
+
+ return score;
+}
+
/**
* of_flat_dt_is_compatible - Return true if given node has compat in compatible list
* @node: node to test
--
2.20.1
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