linux-kernel - [PATCH v3 1/5] platform/x86: intel_scu_ipc: Unify the flow in pwr_reg

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241021133705.2933464-2-andriy.shevchenko@linux.intel.com>
Date: Mon, 21 Oct 2024 16:34:29 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	linux-kernel@...r.kernel.org,
	platform-driver-x86@...r.kernel.org
Cc: Andy Shevchenko <andy@...nel.org>,
	Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Ferry Toth <fntoth@...il.com>
Subject: [PATCH v3 1/5] platform/x86: intel_scu_ipc: Unify the flow in pwr_reg_rdwr()

Unify the flow in pwr_reg_rdwr() with intel_scu_ipc_dev_command_with_size().
While read buffer is not currently being used by the callers of
pwr_reg_rdwr(), this might change in the future. For the existing code
it's a harmless change because the read data for the write operation
is simply discarded.

Tested-by: Ferry Toth <fntoth@...il.com>
Acked-by: Mika Westerberg <mika.westerberg@...ux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/platform/x86/intel_scu_ipc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 5b16d29c93d7..8d11d18701a4 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -325,7 +325,7 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data,
 	}
 
 	err = intel_scu_ipc_check_status(scu);
-	if (!err && id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
+	if (!err) { /* Read rbuf */
 		/* Workaround: values are read as 0 without memcpy_fromio */
 		memcpy_fromio(cbuf, scu->ipc_base + 0x90, 16);
 		for (nc = 0; nc < count; nc++)
-- 
2.43.0.rc1.1336.g36b5255a03ac