FAILED: patch "[PATCH] platform/x86: ISST: Correct command storage data length" failed to apply to 5.4-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 5.4-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y
git checkout FETCH_HEAD
git cherry-pick -x 9462e74c5c983cce34019bfb27f734552bebe59f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2025040821-underdone-luster-6e41@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 9462e74c5c983cce34019bfb27f734552bebe59f Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 28 Mar 2025 15:47:49 -0700
Subject: [PATCH] platform/x86: ISST: Correct command storage data length
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

After resume/online turbo limit ratio (TRL) is restored partially if
the admin explicitly changed TRL from user space.

A hash table is used to store SST mail box and MSR settings when modified
to restore those settings after resume or online. This uses a struct
isst_cmd field "data" to store these settings. This is a 64 bit field.
But isst_store_new_cmd() is only assigning as u32. This results in
truncation of 32 bits.

Change the argument to u64 from u32.

Fixes: f607874f35cb ("platform/x86: ISST: Restore state on resume")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250328224749.2691272-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
index dbcd3087aaa4..31239a93dd71 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
@@ -84,7 +84,7 @@ static DECLARE_HASHTABLE(isst_hash, 8);
 static DEFINE_MUTEX(isst_hash_lock);
 
 static int isst_store_new_cmd(int cmd, u32 cpu, int mbox_cmd_type, u32 param,
-			      u32 data)
+			      u64 data)
 {
 	struct isst_cmd *sst_cmd;