linux-kernel - [PATCH v1 7/8] ACPICA: Fix warnings from PR #295 merge

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Message-ID: <2304653.iZASKD2KPV@rjwysocki.net>
Date: Wed, 26 Mar 2025 21:10:39 +0100
From: "Rafael J. Wysocki" <rjw@...ysocki.net>
To: Linux ACPI <linux-acpi@...r.kernel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Bob Moore <robert.moore@...el.com>,
 Saket Dumbre <saket.dumbre@...el.com>
Subject: [PATCH v1 7/8] ACPICA: Fix warnings from PR #295 merge

From: Saket Dumbre <saket.dumbre@...el.com>

Possible loss of data from u32 to u8 conversions.

ACPICA commit 1d7a0aa04793ff731da13f2070877ec7a9498571

Link: https://github.com/acpica/acpica/commit/1d7a0aa0
Signed-off-by: Saket Dumbre <saket.dumbre@...el.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/acpi/acpica/dsutils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index 2bdae8a25e08..baf6a1f27605 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -723,11 +723,11 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state,
 	 * pop everything off of the operand stack and delete those
 	 * objects
 	 */
-	walk_state->num_operands = i;
+	walk_state->num_operands = (u8)(i);
 	acpi_ds_obj_stack_pop_and_delete(new_num_operands, walk_state);
 
 	/* Restore operand count */
-	walk_state->num_operands = prev_num_operands;
+	walk_state->num_operands = (u8)(prev_num_operands);
 
 	ACPI_EXCEPTION((AE_INFO, status, "While creating Arg %u", index));
 	return_ACPI_STATUS(status);
-- 
2.43.0