On Tue, May 18, 2021 at 1:07 AM <zuoqilin1@xxxxxxx> wrote:
>
> From: zuoqilin <zuoqilin@xxxxxxxxxx>
We don't take patches against the kernel copy of dtc. They need to go
upstream and to the devicetree-compiler list.
> When defining variables and assigning values can be done at the same time.
>
> Signed-off-by: zuoqilin <zuoqilin@xxxxxxxxxx>
> ---
> scripts/dtc/util.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/scripts/dtc/util.c b/scripts/dtc/util.c
> index 40274fb..d1f7608 100644
> --- a/scripts/dtc/util.c
> +++ b/scripts/dtc/util.c
> @@ -292,7 +292,7 @@ int utilfdt_write_err(const char *filename, const void *blob)
> {
> int fd = 1; /* assume stdout */
> int totalsize;
> - int offset;
> + int offset = 0;
> int ret = 0;
> const char *ptr = blob;
>
> @@ -303,7 +303,6 @@ int utilfdt_write_err(const char *filename, const void *blob)
> }
>
> totalsize = fdt_totalsize(blob);
> - offset = 0;
It is possible to exit before this point and the assignment is not
necessary if you do.
>
> while (offset < totalsize) {
> ret = write(fd, ptr + offset, totalsize - offset);
> @@ -421,7 +420,7 @@ void NORETURN util_usage(const char *errmsg, const char *synopsis,
> const char a_arg[] = "<arg>";
> size_t a_arg_len = strlen(a_arg) + 1;
> size_t i;
> - int optlen;
> + int optlen = 0;
>
> fprintf(fp,
> "Usage: %s\n"
> @@ -429,7 +428,6 @@ void NORETURN util_usage(const char *errmsg, const char *synopsis,
> "Options: -[%s]\n", synopsis, short_opts);
>
> /* prescan the --long opt length to auto-align */
> - optlen = 0;
In keeping with doing the assignment as late as possible and just
before needing it, this was correct as is.
> for (i = 0; long_opts[i].name; ++i) {
> /* +1 is for space between --opt and help text */
> int l = strlen(long_opts[i].name) + 1;
> --
> 1.9.1
>
>
