Patch "wifi: iwlwifi: read BIOS PNVM only for non-Intel SKU" has been added to the 6.6-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    wifi: iwlwifi: read BIOS PNVM only for non-Intel SKU

to the 6.6-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     wifi-iwlwifi-read-bios-pnvm-only-for-non-intel-sku.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 97ef0dbfb9f6e4893b5bf828841a9ed9acf276c2
Author: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
Date:   Wed Jan 31 10:24:34 2024 +0200

    wifi: iwlwifi: read BIOS PNVM only for non-Intel SKU
    
    [ Upstream commit c868a189ecfe8cc0b3173c2eaa7f0b659326c151 ]
    
    The driver is supposed to read the PNVM from BIOS only for non-Intel
    SKUs. For Intel SKUs the OEM ID will be 0.
    Read BIOS PNVM only when a non-Intel SKU is indicated.
    
    Fixes: b99e32cbfdf6 ("wifi: iwlwifi: Take loading and setting of pnvm image out of parsing part")
    Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@xxxxxxxxx>
    Reviewed-by: Gregory Greenman <gregory.greenman@xxxxxxxxx>
    Link: https://msgid.link/20240131091413.3625cf1223d3.Ieffda5f506713b1c979388dd7a0e1c1a0145cfca@changeid
    Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
index 650e4bde9c17b..56ee0ceed78ab 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/pnvm.c
@@ -255,21 +255,27 @@ static u8 *iwl_get_pnvm_image(struct iwl_trans *trans_p, size_t *len)
 	struct pnvm_sku_package *package;
 	u8 *image = NULL;
 
-	/* First attempt to get the PNVM from BIOS */
-	package = iwl_uefi_get_pnvm(trans_p, len);
-	if (!IS_ERR_OR_NULL(package)) {
-		if (*len >= sizeof(*package)) {
-			/* we need only the data */
-			*len -= sizeof(*package);
-			image = kmemdup(package->data, *len, GFP_KERNEL);
+	/* Get PNVM from BIOS for non-Intel SKU */
+	if (trans_p->sku_id[2]) {
+		package = iwl_uefi_get_pnvm(trans_p, len);
+		if (!IS_ERR_OR_NULL(package)) {
+			if (*len >= sizeof(*package)) {
+				/* we need only the data */
+				*len -= sizeof(*package);
+				image = kmemdup(package->data,
+						*len, GFP_KERNEL);
+			}
+			/*
+			 * free package regardless of whether kmemdup
+			 * succeeded
+			 */
+			kfree(package);
+			if (image)
+				return image;
 		}
-		/* free package regardless of whether kmemdup succeeded */
-		kfree(package);
-		if (image)
-			return image;
 	}
 
-	/* If it's not available, try from the filesystem */
+	/* If it's not available, or for Intel SKU, try from the filesystem */
 	if (iwl_pnvm_get_from_fs(trans_p, &image, len))
 		return NULL;
 	return image;