[PATCH 05/28] pxe: Add a userdata field to the context

[Simon Glass]

Allow the caller to provide some info which is passed back to the
readfile() method.

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

 cmd/pxe.c       | 4 ++--
 cmd/pxe_utils.c | 3 ++-
 cmd/pxe_utils.h | 6 +++++-
 cmd/sysboot.c   | 2 +-
 4 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/cmd/pxe.c b/cmd/pxe.c
index 70dbde3a636..d79b9b733d7 100644
--- a/cmd/pxe.c
+++ b/cmd/pxe.c
@@ -121,7 +121,7 @@ do_pxe_get(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	struct pxe_context ctx;
 	int err, i = 0;
 
-	pxe_setup_ctx(&ctx, cmdtp, do_get_tftp);
+	pxe_setup_ctx(&ctx, cmdtp, do_get_tftp, NULL);
 
 	if (argc != 1)
 		return CMD_RET_USAGE;
@@ -175,7 +175,7 @@ do_pxe_boot(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	char *pxefile_addr_str;
 	struct pxe_context ctx;
 
-	pxe_setup_ctx(&ctx, cmdtp, do_get_tftp);
+	pxe_setup_ctx(&ctx, cmdtp, do_get_tftp, NULL);
 
 	if (argc == 1) {
 		pxefile_addr_str = from_env("pxefile_addr_r");
diff --git a/cmd/pxe_utils.c b/cmd/pxe_utils.c
index 2caae6d1555..5ad6d3e3d44 100644
--- a/cmd/pxe_utils.c
+++ b/cmd/pxe_utils.c
@@ -1432,8 +1432,9 @@ void handle_pxe_menu(struct pxe_context *ctx, struct pxe_menu *cfg)
 }
 
 void pxe_setup_ctx(struct pxe_context *ctx, struct cmd_tbl *cmdtp,
-		   pxe_getfile_func getfile)
+		   pxe_getfile_func getfile, void *userdata)
 {
 	ctx->cmdtp = cmdtp;
 	ctx->getfile = getfile;
+	ctx->userdata = userdata;
 }
diff --git a/cmd/pxe_utils.h b/cmd/pxe_utils.h
index ca2696f48b0..921455f694e 100644
--- a/cmd/pxe_utils.h
+++ b/cmd/pxe_utils.h
@@ -86,6 +86,7 @@ typedef int (*pxe_getfile_func)(struct pxe_context *ctx, const char *file_path,
  *
  * @cmdtp: Pointer to command table to use when calling other commands
  * @getfile: Function called by PXE to read a file
+ * @userdata: Data the caller requires for @getfile
  */
 struct pxe_context {
 	struct cmd_tbl *cmdtp;
@@ -99,6 +100,8 @@ struct pxe_context {
 	 * Return 0 if OK, -ve on error
 	 */
 	pxe_getfile_func getfile;
+
+	void *userdata;
 };
 
 /**
@@ -192,8 +195,9 @@ int format_mac_pxe(char *outbuf, size_t outbuf_len);
  * @ctx: Context to set up
  * @cmdtp: Command table entry which started this action
  * @getfile: Function to call to read a file
+ * @userdata: Data the caller requires for @getfile - stored in ctx->userdata
  */
 void pxe_setup_ctx(struct pxe_context *ctx, struct cmd_tbl *cmdtp,
-		   pxe_getfile_func getfile);
+		   pxe_getfile_func getfile, void *userdata);
 
 #endif /* __PXE_UTILS_H */
diff --git a/cmd/sysboot.c b/cmd/sysboot.c
index 082f23543d1..5615e81e9ca 100644
--- a/cmd/sysboot.c
+++ b/cmd/sysboot.c
@@ -91,7 +91,7 @@ static int do_sysboot(struct cmd_tbl *cmdtp, int flag, int argc,
 		env_set("bootfile", filename);
 	}
 
-	pxe_setup_ctx(&ctx, cmdtp, NULL);
+	pxe_setup_ctx(&ctx, cmdtp, NULL, NULL);
 	if (strstr(argv[3], "ext2")) {
 		ctx.getfile = do_get_ext2;
 	} else if (strstr(argv[3], "fat")) {
-- 
2.33.0.rc1.237.g0d66db33f3-goog