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From: <gregkh@linuxfoundation.org>
To: jesse.brandeburg@intel.com, himasekharx.reddy.pucha@intel.com,
	horms@kernel.org, jacob.e.keller@intel.com, kuba@kernel.org,
	przemyslaw.kitszel@intel.com
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] ice: fix over-shifted variable" failed to apply to 4.19-stable tree
Date: Fri, 20 Oct 2023 18:52:51 +0200	[thread overview]
Message-ID: <2023102051-monsoon-democracy-4b10@gregkh> (raw)


The patch below does not apply to the 4.19-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-4.19.y
git checkout FETCH_HEAD
git cherry-pick -x 242e34500a32631f85c2b4eb6cb42a368a39e54f
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2023102051-monsoon-democracy-4b10@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 242e34500a32631f85c2b4eb6cb42a368a39e54f Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Tue, 10 Oct 2023 13:30:59 -0700
Subject: [PATCH] ice: fix over-shifted variable

Since the introduction of the ice driver the code has been
double-shifting the RSS enabling field, because the define already has
shifts in it and can't have the regular pattern of "a << shiftval &
mask" applied.

Most places in the code got it right, but one line was still wrong. Fix
this one location for easy backports to stable. An in-progress patch
fixes the defines to "standard" and will be applied as part of the
regular -next process sometime after this one.

Fixes: d76a60ba7afb ("ice: Add support for VLANs and offloads")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
CC: stable@vger.kernel.org
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://lore.kernel.org/r/20231010203101.406248-1-jacob.e.keller@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index 7bf9b7069754..73bbf06a76db 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -1201,8 +1201,7 @@ static void ice_set_rss_vsi_ctx(struct ice_vsi_ctx *ctxt, struct ice_vsi *vsi)
 
 	ctxt->info.q_opt_rss = ((lut_type << ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
 				ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
-				((hash_type << ICE_AQ_VSI_Q_OPT_RSS_HASH_S) &
-				 ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
+				(hash_type & ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
 }
 
 static void


                 reply	other threads:[~2023-10-20 16:53 UTC|newest]

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