Execute the command cls (for clear screen), when the "menu background"
keyword is present in extlinux.conf file, only if the command is supported.

This patch avoid the warning "Unknown command 'cls'"
with "menu background" in extlinux.conf when CONFIG_CMD_BMP is activated
and CONFIG_CMD_CLS not activated (default for CONFIG_DM_VIDEO).

Signed-off-by: Patrick Delaunay <patrick.delau...@st.com>
---

 cmd/pxe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmd/pxe.c b/cmd/pxe.c
index 2059975446..b62cb79b3a 100644
--- a/cmd/pxe.c
+++ b/cmd/pxe.c
@@ -1592,7 +1592,8 @@ static void handle_pxe_menu(cmd_tbl_t *cmdtp, struct 
pxe_menu *cfg)
        /* display BMP if available */
        if (cfg->bmp) {
                if (get_relfile(cmdtp, cfg->bmp, load_addr)) {
-                       run_command("cls", 0);
+                       if (CONFIG_IS_ENABLED(CMD_CLS))
+                               run_command("cls", 0);
                        bmp_display(load_addr,
                                    BMP_ALIGN_CENTER, BMP_ALIGN_CENTER);
                } else {
-- 
2.17.1

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