From: Nishanth Menon <nm@ti.com>
To: Justin Stitt <justinstitt@google.com>,
Bill Wendling <morbo@google.com>,
Nick Desaulniers <nick.desaulniers+lkml@gmail.com>,
Nathan Chancellor <nathan@kernel.org>,
Santosh Shilimkar <ssantosh@kernel.org>,
Nishanth Menon <nm@ti.com>
Cc: <llvm@lists.linux.dev>, <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 03/11] soc: ti: knav_qmss: Inline lockdep condition in for_each_handle_rcu
Date: Fri, 8 May 2026 10:32:03 -0500 [thread overview]
Message-ID: <20260508153211.3688277-4-nm@ti.com> (raw)
In-Reply-To: <20260508153211.3688277-1-nm@ti.com>
knav_dev_lock_held() is a single-use wrapper around
lockdep_is_held(&knav_dev_lock), used only as the lockdep condition
in for_each_handle_rcu. When CONFIG_LOCKDEP is disabled,
list_for_each_entry_rcu() elides the condition argument entirely,
causing clang to report the macro as unused with W=2:
knav_qmss_queue.c:30:9: warning: macro is not used [-Wunused-macros]
30 | #define knav_dev_lock_held() \
Remove the intermediate macro and open-code lockdep_is_held() directly
in the for_each_handle_rcu definition.
Signed-off-by: Nishanth Menon <nm@ti.com>
---
drivers/soc/ti/knav_qmss_queue.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/drivers/soc/ti/knav_qmss_queue.c b/drivers/soc/ti/knav_qmss_queue.c
index 2c103bb6edef..f65658014b05 100644
--- a/drivers/soc/ti/knav_qmss_queue.c
+++ b/drivers/soc/ti/knav_qmss_queue.c
@@ -27,9 +27,6 @@
static struct knav_device *knav_qdev;
static DEFINE_MUTEX(knav_dev_lock);
-#define knav_dev_lock_held() \
- lockdep_is_held(&knav_dev_lock)
-
/* Queue manager register indices in DTS */
#define KNAV_QUEUE_PEEK_REG_INDEX 0
#define KNAV_QUEUE_STATUS_REG_INDEX 1
@@ -58,7 +55,7 @@ static DEFINE_MUTEX(knav_dev_lock);
#define for_each_handle_rcu(qh, inst) \
list_for_each_entry_rcu(qh, &inst->handles, list, \
- knav_dev_lock_held())
+ lockdep_is_held(&knav_dev_lock))
#define for_each_instance(idx, inst, kdev) \
for (idx = 0, inst = kdev->instances; \
--
2.47.0
next prev parent reply other threads:[~2026-05-08 15:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-08 15:32 [PATCH 00/11] soc: ti: keystone/k3 navigator queue/dma/ringacc cleanups Nishanth Menon
2026-05-08 15:32 ` [PATCH 01/11] soc: ti: knav_qmss: Remove remaining redundant ENOMEM printks Nishanth Menon
2026-05-08 15:32 ` [PATCH 02/11] soc: ti: knav_qmss: Rename global kdev to knav_qdev to fix -Wshadow Nishanth Menon
2026-05-08 15:32 ` Nishanth Menon [this message]
2026-05-08 17:05 ` [PATCH 03/11] soc: ti: knav_qmss: Inline lockdep condition in for_each_handle_rcu Andrew Davis
2026-05-08 17:15 ` Nishanth Menon
2026-05-08 15:32 ` [PATCH 04/11] soc: ti: knav_qmss: Fix kernel-doc Return: tags Nishanth Menon
2026-05-08 18:02 ` Randy Dunlap
2026-05-08 15:32 ` [PATCH 05/11] soc: ti: knav_qmss: Use %pe to print PTR_ERR() Nishanth Menon
2026-05-08 15:32 ` [PATCH 06/11] soc: ti: knav_qmss: Fix __iomem annotations and __be32 type Nishanth Menon
2026-05-08 17:14 ` Andrew Davis
2026-05-08 17:36 ` Nishanth Menon
2026-05-08 19:30 ` Andrew Davis
2026-05-08 15:32 ` [PATCH 07/11] soc: ti: knav_qmss_acc: Fix kernel-doc Return: tag Nishanth Menon
2026-05-08 18:02 ` Randy Dunlap
2026-05-08 15:32 ` [PATCH 08/11] soc: ti: knav_dma: Remove unused DMA_PRIO_MASK macro Nishanth Menon
2026-05-08 15:32 ` [PATCH 09/11] soc: ti: knav_dma: Remove dead check on unsigned args.args[0] Nishanth Menon
2026-05-08 15:32 ` [PATCH 10/11] soc: ti: knav_dma: Use IOMEM_ERR_PTR() in pktdma_get_regs() Nishanth Menon
2026-05-08 15:32 ` [PATCH 11/11] soc: ti: k3-ringacc: Use str_enabled_disabled() helper Nishanth Menon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260508153211.3688277-4-nm@ti.com \
--to=nm@ti.com \
--cc=justinstitt@google.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=morbo@google.com \
--cc=nathan@kernel.org \
--cc=nick.desaulniers+lkml@gmail.com \
--cc=ssantosh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox