Recent Clang complains about the "debug" static variable only ever being
written to. Drop it and the command line option controlling it.

Fixes: 19ab8356abe4 ("tools: remove support for running a guest with qemu-traditional")
Signed-off-by: Jan Beulich <jbeulich@suse.com>

--- a/tools/libacpi/mk_dsdt.c
+++ b/tools/libacpi/mk_dsdt.c
@@ -15,7 +15,6 @@
 #endif
 
 static unsigned int indent_level;
-static bool debug = false;
 
 typedef enum dm_version {
     QEMU_NONE,
@@ -73,7 +72,6 @@ static struct option options[] = {
 #ifdef CONFIG_X86
     { "dm-version", 1, 0, 'q' },
 #endif
-    { "debug", 1, 0, 'd' },
     { 0, 0, 0, 0 }
 };
 
@@ -125,10 +123,7 @@ int main(int argc, char **argv)
             }
             break;
 #endif
-        case 'd':
-            if (*optarg == 'y')
-                debug = true;
-            break;
+
         default:
             return -1;
         }
--- a/tools/libacpi/Makefile
+++ b/tools/libacpi/Makefile
@@ -43,7 +43,7 @@ $(ACPI_BUILD_DIR)/dsdt_anycpu_qemu_xen.a
 	# Remove last bracket
 	awk 'NR > 1 {print s} {s=$$0}' $< > $@.$(TMP_SUFFIX)
 	cat dsdt_acpi_info.asl >> $@.$(TMP_SUFFIX)
-	$(MK_DSDT) --debug=$(debug) --dm-version qemu-xen >> $@.$(TMP_SUFFIX)
+	$(MK_DSDT) --dm-version qemu-xen >> $@.$(TMP_SUFFIX)
 	mv -f $@.$(TMP_SUFFIX) $@
 
 # NB. awk invocation is a portable alternative to 'head -n -1'
@@ -51,17 +51,17 @@ $(ACPI_BUILD_DIR)/dsdt_%cpu.asl: dsdt.as
 	# Remove last bracket
 	awk 'NR > 1 {print s} {s=$$0}' $< > $@.$(TMP_SUFFIX)
 	cat dsdt_acpi_info.asl >> $@.$(TMP_SUFFIX)
-	$(MK_DSDT) --debug=$(debug) --maxcpu $* --dm-version qemu-xen >> $@.$(TMP_SUFFIX)
+	$(MK_DSDT) --maxcpu $* --dm-version qemu-xen >> $@.$(TMP_SUFFIX)
 	mv -f $@.$(TMP_SUFFIX) $@
 
 $(ACPI_BUILD_DIR)/dsdt_pvh.asl: dsdt_acpi_info.asl $(MK_DSDT)
 	printf "DefinitionBlock (\"DSDT.aml\", \"DSDT\", 5, \"Xen\", \"HVM\", 0)\n{" > $@
 	cat dsdt_acpi_info.asl >> $@
-	$(MK_DSDT) --debug=$(debug) --maxcpu any --dm-version none >> $@
+	$(MK_DSDT) --maxcpu any --dm-version none >> $@
 
 $(ACPI_BUILD_DIR)/dsdt_anycpu_arm.asl: $(MK_DSDT)
 	printf "DefinitionBlock (\"DSDT.aml\", \"DSDT\", 3, \"Xen\", \"ARM\", 1)\n{" > $@.$(TMP_SUFFIX)
-	$(MK_DSDT) --debug=$(debug) >> $@.$(TMP_SUFFIX)
+	$(MK_DSDT) >> $@.$(TMP_SUFFIX)
 	mv -f $@.$(TMP_SUFFIX) $@
 
 $(C_SRC): $(ACPI_BUILD_DIR)/%.c: $(ACPI_BUILD_DIR)/%.asl

On Mon, Sep 07, 2026 at 11:48:12AM +0200, Jan Beulich wrote:
> Recent Clang complains about the "debug" static variable only ever being
> written to. Drop it and the command line option controlling it.
> 
> Fixes: 19ab8356abe4 ("tools: remove support for running a guest with qemu-traditional")
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Roger Pau Monné <roger@xenproject.org>

Thanks, Roger.

On 07/09/2026 10:48 am, Jan Beulich wrote:
> Recent Clang complains about the "debug" static variable only ever being
> written to. Drop it and the command line option controlling it.
>
> Fixes: 19ab8356abe4 ("tools: remove support for running a guest with qemu-traditional")
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>