[PATCH v2 5/5] boot: assign names to bootentry providers

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

This allows board- or functionality-specific (like EFI loader support)
to invoke a specific bootentry provider by name.

Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
v1 -> v2:
  - add Sascha's R-b
---
 arch/arm/boards/protonic-imx6/board.c |  1 +
 common/blspec.c                       |  1 +
 common/boot.c                         | 15 +++++++++++++++
 common/bootchooser.c                  |  1 +
 common/bootdef.c                      |  1 +
 include/boot.h                        |  2 ++
 6 files changed, 21 insertions(+)

diff --git a/arch/arm/boards/protonic-imx6/board.c b/arch/arm/boards/protonic-imx6/board.c
index 80558ce15817..c15a349c8a88 100644
--- a/arch/arm/boards/protonic-imx6/board.c
+++ b/arch/arm/boards/protonic-imx6/board.c
@@ -461,6 +461,7 @@ static int prt_imx6_bootentry_generate(struct bootentries *bootentries,
 }
 
 static struct bootentry_provider prt_imx6_bootentry_provider = {
+	.name = "prt-imx6",
 	.generate = prt_imx6_bootentry_generate,
 };
 
diff --git a/common/blspec.c b/common/blspec.c
index bc2c3204ad62..624e4c115272 100644
--- a/common/blspec.c
+++ b/common/blspec.c
@@ -639,6 +639,7 @@ static int blspec_bootentry_generate(struct bootentries *bootentries,
 }
 
 static struct bootentry_provider blspec_bootentry_provider = {
+	.name = "blspec",
 	.generate = blspec_bootentry_generate,
 };
 
diff --git a/common/boot.c b/common/boot.c
index 14525d31ae2d..1059e6d995d3 100644
--- a/common/boot.c
+++ b/common/boot.c
@@ -288,6 +288,21 @@ int bootentry_register_provider(struct bootentry_provider *p)
 	return 0;
 }
 
+struct bootentry_provider *get_bootentry_provider(const char *name)
+{
+	struct bootentry_provider *p;
+
+	if (!name)
+		return NULL;
+
+	list_for_each_entry(p, &bootentry_providers, list) {
+		if (streq_ptr(p->name, name))
+			return p;
+	}
+
+	return NULL;
+}
+
 /*
  * nfs_find_mountpath - Check if a given url is already mounted
  */
diff --git a/common/bootchooser.c b/common/bootchooser.c
index a79eee8ca2c4..2905a0ca677e 100644
--- a/common/bootchooser.c
+++ b/common/bootchooser.c
@@ -962,6 +962,7 @@ static int bootchooser_add_entry(struct bootentries *entries, const char *name)
 }
 
 static struct bootentry_provider bootchooser_entry_provider = {
+	.name = "bootchooser",
 	.generate = bootchooser_add_entry,
 };
 
diff --git a/common/bootdef.c b/common/bootdef.c
index e8140d3a6bce..85471d92d3c5 100644
--- a/common/bootdef.c
+++ b/common/bootdef.c
@@ -31,6 +31,7 @@ static int bootdef_add_entry(struct bootentries *entries, const char *name)
 }
 
 static struct bootentry_provider bootdef_entry_provider = {
+	.name = "bootdef",
 	.generate = bootdef_add_entry,
 };
 
diff --git a/include/boot.h b/include/boot.h
index c1676364cadc..ae32b9ead93f 100644
--- a/include/boot.h
+++ b/include/boot.h
@@ -26,12 +26,14 @@ struct bootentry {
 int bootentries_add_entry(struct bootentries *entries, struct bootentry *entry);
 
 struct bootentry_provider {
+	const char *name;
 	int (*generate)(struct bootentries *bootentries, const char *name);
 	/* internal fields */
 	struct list_head list;
 };
 
 int bootentry_register_provider(struct bootentry_provider *provider);
+struct bootentry_provider *get_bootentry_provider(const char *name);
 
 #define bootentries_for_each_entry(bootentries, entry) \
 	list_for_each_entry(entry, &bootentries->entries, list)
-- 
2.47.3