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net: Read bootfile from env on netboot_common()

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Instead of depending on a env callback for bootfile, read it explicitly.

We do this because the bootfile can be specified on the command line and
if it is, we will overwrite the internal variable. If a netboot_common()
is called again with no bootfile parameter, we want to use the one in
the environment.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Joe Hershberger
2018-07-03 19:36:42 -05:00
parent 16cf145fd6
commit f43308fa0c
2 changed files with 6 additions and 20 deletions
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6
cmd/net.c
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@@ -192,6 +192,9 @@ static int netboot_common(enum proto_t proto, cmd_tbl_t *cmdtp, int argc,
switch (argc) {
case 1:
/* refresh bootfile name from env */
copy_filename(net_boot_file_name, env_get("bootfile"),
sizeof(net_boot_file_name));
break;
case 2: /*
@@ -203,6 +206,9 @@ static int netboot_common(enum proto_t proto, cmd_tbl_t *cmdtp, int argc,
addr = simple_strtoul(argv[1], &end, 16);
if (end == (argv[1] + strlen(argv[1]))) {
load_addr = addr;
/* refresh bootfile name from env */
copy_filename(net_boot_file_name, env_get("bootfile"),
sizeof(net_boot_file_name));
} else {
net_boot_file_name_explicit = true;
copy_filename(net_boot_file_name, argv[1],