[PATCH v3 40/46] bootmeth_extlinux: Move boot code into common file

[Simon Glass]

The extlinux and PXE code for booting is almost the same. Move it into
the common file so it is easier to keep it in sync.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

Changes in v3:
- Pass through the bootfile since extlinux and PXE are different

 boot/bootmeth_extlinux.c | 24 +++---------------------
 boot/bootmeth_pxe.c      | 20 ++------------------
 boot/ext_pxe_common.c    | 25 +++++++++++++++++++++++++
 include/extlinux.h       | 15 +++++++++++++++
 4 files changed, 45 insertions(+), 39 deletions(-)

diff --git a/boot/bootmeth_extlinux.c b/boot/bootmeth_extlinux.c
index d0a32eb8b68..e7277ccdaa9 100644
--- a/boot/bootmeth_extlinux.c
+++ b/boot/bootmeth_extlinux.c
@@ -140,27 +140,9 @@ static int extlinux_read_bootflow(struct udevice *dev, struct bootflow *bflow)
 	return 0;
 }
 
-static int extlinux_boot(struct udevice *dev, struct bootflow *bflow)
+static int extlinux_local_boot(struct udevice *dev, struct bootflow *bflow)
 {
-	struct extlinux_plat *plat = dev_get_plat(dev);
-	ulong addr;
-	int ret;
-
-	addr = map_to_sysmem(bflow->buf);
-
-	plat->info.dev = dev;
-	plat->info.bflow = bflow;
-
-	ret = pxe_setup_ctx(&plat->ctx, extlinux_getfile, &plat->info, true,
-			    bflow->fname, false, plat->use_fallback, bflow);
-	if (ret)
-		return log_msg_ret("ctx", -EINVAL);
-
-	ret = pxe_process(&plat->ctx, addr, false);
-	if (ret)
-		return log_msg_ret("bread", -EINVAL);
-
-	return 0;
+	return extlinux_boot(dev, bflow, extlinux_getfile, true, bflow->fname);
 }
 
 static int extlinux_bootmeth_bind(struct udevice *dev)
@@ -178,7 +160,7 @@ static struct bootmeth_ops extlinux_bootmeth_ops = {
 	.check		= extlinux_check,
 	.read_bootflow	= extlinux_read_bootflow,
 	.read_file	= bootmeth_common_read_file,
-	.boot		= extlinux_boot,
+	.boot		= extlinux_local_boot,
 	.set_property	= extlinux_set_property,
 };
 
diff --git a/boot/bootmeth_pxe.c b/boot/bootmeth_pxe.c
index a9608edcef9..5f3d595628c 100644
--- a/boot/bootmeth_pxe.c
+++ b/boot/bootmeth_pxe.c
@@ -139,24 +139,8 @@ static int extlinux_pxe_read_file(struct udevice *dev, struct bootflow *bflow,
 
 static int extlinux_pxe_boot(struct udevice *dev, struct bootflow *bflow)
 {
-	struct extlinux_plat *plat = dev_get_plat(dev);
-	struct pxe_context *ctx = &plat->ctx;
-	ulong addr;
-	int ret;
-
-	addr = map_to_sysmem(bflow->buf);
-	plat->info.dev = dev;
-	plat->info.bflow = bflow;
-	ret = pxe_setup_ctx(ctx, extlinux_pxe_getfile, &plat->info, false,
-			    bflow->subdir, false, plat->use_fallback, bflow);
-	if (ret)
-		return log_msg_ret("ctx", -EINVAL);
-
-	ret = pxe_process(ctx, addr, false);
-	if (ret)
-		return log_msg_ret("bread", -EINVAL);
-
-	return 0;
+	return extlinux_boot(dev, bflow, extlinux_pxe_getfile, false,
+			     bflow->subdir);
 }
 
 static int extlinux_bootmeth_pxe_bind(struct udevice *dev)
diff --git a/boot/ext_pxe_common.c b/boot/ext_pxe_common.c
index e42865b84f5..0d808048289 100644
--- a/boot/ext_pxe_common.c
+++ b/boot/ext_pxe_common.c
@@ -74,3 +74,28 @@ int extlinux_set_property(struct udevice *dev, const char *property,
 
 	return 0;
 }
+
+int extlinux_boot(struct udevice *dev, struct bootflow *bflow,
+		  pxe_getfile_func getfile, bool allow_abs_path,
+		  const char *bootfile)
+{
+	struct extlinux_plat *plat = dev_get_plat(dev);
+	ulong addr;
+	int ret;
+
+	addr = map_to_sysmem(bflow->buf);
+
+	plat->info.dev = dev;
+	plat->info.bflow = bflow;
+
+	ret = pxe_setup_ctx(&plat->ctx, getfile, &plat->info, allow_abs_path,
+			    bootfile, false, plat->use_fallback, bflow);
+	if (ret)
+		return log_msg_ret("ctx", -EINVAL);
+
+	ret = pxe_process(&plat->ctx, addr, false);
+	if (ret)
+		return log_msg_ret("bread", -EINVAL);
+
+	return 0;
+}
diff --git a/include/extlinux.h b/include/extlinux.h
index f97164954cc..5baa2440b53 100644
--- a/include/extlinux.h
+++ b/include/extlinux.h
@@ -49,4 +49,19 @@ struct extlinux_plat {
 int extlinux_set_property(struct udevice *dev, const char *property,
 			  const char *value);
 
+/**
+ * extlinux_boot() - Boot a bootflow
+ *
+ * @dev: bootmeth device
+ * @bflow: Bootflow to boot
+ * @getfile: Function to use to read files
+ * @allow_abs_path: true to allow absolute paths
+ * @bootfile: Bootfile whose directory loaded files are relative to, NULL if
+ *	none
+ * Return: 0 if OK, -ve error code on failure
+ */
+int extlinux_boot(struct udevice *dev, struct bootflow *bflow,
+		  pxe_getfile_func getfile, bool allow_abs_path,
+		  const char *bootfile);
+
 #endif
-- 
2.34.1