This is a note to let you know that I've just added the patch titled
block/blk-iocost (gcc13): keep large values in a new enum
to the 5.10-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:
block-blk-iocost-gcc13-keep-large-values-in-a-new-enum.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From ff1cc97b1f4c10db224f276d9615b22835b8c424 Mon Sep 17 00:00:00 2001
From: "Jiri Slaby (SUSE)" <jirislaby@xxxxxxxxxx>
Date: Tue, 13 Dec 2022 13:08:26 +0100
Subject: block/blk-iocost (gcc13): keep large values in a new enum
From: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
commit ff1cc97b1f4c10db224f276d9615b22835b8c424 upstream.
Since gcc13, each member of an enum has the same type as the enum [1]. And
that is inherited from its members. Provided:
VTIME_PER_SEC_SHIFT = 37,
VTIME_PER_SEC = 1LLU << VTIME_PER_SEC_SHIFT,
...
AUTOP_CYCLE_NSEC = 10LLU * NSEC_PER_SEC,
the named type is unsigned long.
This generates warnings with gcc-13:
block/blk-iocost.c: In function 'ioc_weight_prfill':
block/blk-iocost.c:3037:37: error: format '%u' expects argument of type 'unsigned int', but argument 4 has type 'long unsigned int'
block/blk-iocost.c: In function 'ioc_weight_show':
block/blk-iocost.c:3047:34: error: format '%u' expects argument of type 'unsigned int', but argument 3 has type 'long unsigned int'
So split the anonymous enum with large values to a separate enum, so
that they don't affect other members.
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=36113
Cc: Martin Liska <mliska@xxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Josef Bacik <josef@xxxxxxxxxxxxxx>
Cc: Jens Axboe <axboe@xxxxxxxxx>
Cc: cgroups@xxxxxxxxxxxxxxx
Cc: linux-block@xxxxxxxxxxxxxxx
Signed-off-by: Jiri Slaby (SUSE) <jirislaby@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20221213120826.17446-1-jirislaby@xxxxxxxxxx
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
block/blk-iocost.c | 2 ++
1 file changed, 2 insertions(+)
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -232,7 +232,9 @@ enum {
/* 1/64k is granular enough and can easily be handled w/ u32 */
WEIGHT_ONE = 1 << 16,
+};
+enum {
/*
* As vtime is used to calculate the cost of each IO, it needs to
* be fairly high precision. For example, it should be able to
Patches currently in stable-queue which might be from jirislaby@xxxxxxxxxx are
queue-5.10/bonding-gcc13-synchronize-bond_-a-t-lb_xmit-types.patch
queue-5.10/sfc-gcc13-synchronize-ef100_enqueue_skb-s-return-type.patch
queue-5.10/block-blk-iocost-gcc13-keep-large-values-in-a-new-enum.patch
