linux-kernel - [PATCH] ACPI: PM: s2idle: Drop unused local variables and related code

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Message-ID: <3607102.xkEKTzvHZR@kreacher>
Date:   Tue, 05 Jan 2021 19:19:18 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Shyam Sundar S K <Shyam-sundar.S-k@....com>
Subject: [PATCH] ACPI: PM: s2idle: Drop unused local variables and related code

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Two local variables in drivers/acpi/x86/s2idle.c are never read, so
drop them along with the code updating their values (in vain).

Fixes: fef98671194b ("ACPI: PM: s2idle: Move x86-specific code to the x86 directory")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/x86/s2idle.c |   14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

Index: linux-pm/drivers/acpi/x86/s2idle.c
===================================================================
--- linux-pm.orig/drivers/acpi/x86/s2idle.c
+++ linux-pm/drivers/acpi/x86/s2idle.c
@@ -105,18 +105,8 @@ static void lpi_device_get_constraints_a
 
 	for (i = 0; i < out_obj->package.count; i++) {
 		union acpi_object *package = &out_obj->package.elements[i];
-		struct lpi_device_info_amd info = { };
 
-		if (package->type == ACPI_TYPE_INTEGER) {
-			switch (i) {
-			case 0:
-				info.revision = package->integer.value;
-				break;
-			case 1:
-				info.count = package->integer.value;
-				break;
-			}
-		} else if (package->type == ACPI_TYPE_PACKAGE) {
+		if (package->type == ACPI_TYPE_PACKAGE) {
 			lpi_constraints_table = kcalloc(package->package.count,
 							sizeof(*lpi_constraints_table),
 							GFP_KERNEL);
@@ -135,12 +125,10 @@ static void lpi_device_get_constraints_a
 
 				for (k = 0; k < info_obj->package.count; ++k) {
 					union acpi_object *obj = &info_obj->package.elements[k];
-					union acpi_object *obj_new;
 
 					list = &lpi_constraints_table[lpi_constraints_table_size];
 					list->min_dstate = -1;
 
-					obj_new = &obj[k];
 					switch (k) {
 					case 0:
 						dev_info.enabled = obj->integer.value;