pxe: Add a userdata field to the context

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

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Artem Lapkin <email2tema@gmail.com>
Tested-by: Artem Lapkin <email2tema@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>

diff --git a/cmd/pxe.c b/cmd/pxe.c
index 70dbde3..d79b9b7 100644 (file)
--- 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 c65f1ea..11c2ccf 100644 (file)
--- a/cmd/pxe_utils.c
+++ b/cmd/pxe_utils.c
@@ -1451,8 +1451,9 @@ 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 ca2696f..921455f 100644 (file)
--- 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 082f235..5615e81 100644 (file)
--- 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")) {