diff mbox series

[2/3] efi/libstub: remove uneccessary cmdline_size init/check

Message ID 20241011224812.25763-2-jonathan@marek.ca
State New
Headers show
Series [1/3] efi/libstub: fix efi_parse_options() ignoring the default command line | expand

Commit Message

Jonathan Marek Oct. 11, 2024, 10:48 p.m. UTC
efi_convert_cmdline() always sets cmdline_size to at least 1 on success,
so both the initialization to 0 and > 0 comparison are unecessary.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
---
 drivers/firmware/efi/libstub/efi-stub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Ard Biesheuvel Oct. 12, 2024, 7:49 a.m. UTC | #1
On Sat, 12 Oct 2024 at 00:52, Jonathan Marek <jonathan@marek.ca> wrote:
>
> efi_convert_cmdline() always sets cmdline_size to at least 1 on success,
> so both the initialization to 0 and > 0 comparison are unecessary.
>

The intent is to avoid parsing the empty string, so arguably, we
should test for cmdline_size > 1 instead. But if we fix
efi_convert_cmdline() instead, as I proposed in reply to 1/3, I guess
we can drop this patch.


> Signed-off-by: Jonathan Marek <jonathan@marek.ca>
> ---
>  drivers/firmware/efi/libstub/efi-stub.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/firmware/efi/libstub/efi-stub.c b/drivers/firmware/efi/libstub/efi-stub.c
> index 709ae2d41a632..f166614ef8432 100644
> --- a/drivers/firmware/efi/libstub/efi-stub.c
> +++ b/drivers/firmware/efi/libstub/efi-stub.c
> @@ -112,7 +112,7 @@ static u32 get_supported_rt_services(void)
>
>  efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
>  {
> -       int cmdline_size = 0;
> +       int cmdline_size;
>         efi_status_t status;
>         char *cmdline;
>
> @@ -137,7 +137,7 @@ efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
>                 }
>         }
>
> -       if (!IS_ENABLED(CONFIG_CMDLINE_FORCE) && cmdline_size > 0) {
> +       if (!IS_ENABLED(CONFIG_CMDLINE_FORCE)) {
>                 status = efi_parse_options(cmdline);
>                 if (status != EFI_SUCCESS) {
>                         efi_err("Failed to parse options\n");
> --
> 2.45.1
>
diff mbox series

Patch

diff --git a/drivers/firmware/efi/libstub/efi-stub.c b/drivers/firmware/efi/libstub/efi-stub.c
index 709ae2d41a632..f166614ef8432 100644
--- a/drivers/firmware/efi/libstub/efi-stub.c
+++ b/drivers/firmware/efi/libstub/efi-stub.c
@@ -112,7 +112,7 @@  static u32 get_supported_rt_services(void)
 
 efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
 {
-	int cmdline_size = 0;
+	int cmdline_size;
 	efi_status_t status;
 	char *cmdline;
 
@@ -137,7 +137,7 @@  efi_status_t efi_handle_cmdline(efi_loaded_image_t *image, char **cmdline_ptr)
 		}
 	}
 
-	if (!IS_ENABLED(CONFIG_CMDLINE_FORCE) && cmdline_size > 0) {
+	if (!IS_ENABLED(CONFIG_CMDLINE_FORCE)) {
 		status = efi_parse_options(cmdline);
 		if (status != EFI_SUCCESS) {
 			efi_err("Failed to parse options\n");