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pxe: Return the file size from the getfile() function

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It is pretty strange that the pxe code uses the 'filesize' environment
variable find the size of a file it has just read.

Partly this is because it uses the command-line interpreter to parse its
request to load the file.

As a first step towards unwinding this, return it directly from the
getfile() function. This makes the code a bit longer, for now, but will be
cleaned up in future patches.

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>
This commit is contained in:
Simon Glass 2021-10-14 12:48:08 -06:00 • committed by Tom Rini
parent 4a255ea3b6
commit 4d79e884ad
4 changed files with 79 additions and 32 deletions
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7
cmd/pxe.c
View file

@ -25,15 +25,20 @@ const char *pxe_default_paths[] = {
};
static int do_get_tftp(struct pxe_context *ctx, const char *file_path,
char *file_addr)
char *file_addr, ulong *sizep)
{
char *tftp_argv[] = {"tftp", NULL, NULL, NULL};
int ret;
tftp_argv[1] = file_addr;
tftp_argv[2] = (void *)file_path;
if (do_tftpb(ctx->cmdtp, 0, 3, tftp_argv))
return -ENOENT;
ret = pxe_get_file_size(sizep);
if (ret)
return log_msg_ret("tftp", ret);
ctx->pxe_file_size = *sizep;
return 1;
}