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>
Cc: <afd@ti.com>, Nishanth Menon <nm@ti.com>, <llvm@lists.linux.dev>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH V2 09/11] soc: ti: knav_dma: Remove dead check on unsigned args.args[0]
Date: Tue, 12 May 2026 12:06:21 -0500 [thread overview]
Message-ID: <20260512170623.3174416-10-nm@ti.com> (raw)
In-Reply-To: <20260512170623.3174416-1-nm@ti.com>
smatch warns:
knav_dma.c:390 of_channel_match_helper() warn: unsigned
'args.args[0]' is never less than zero.
of_phandle_args.args[] is uint32_t, so the 'args.args[0] < 0' check
is always false. of_parse_phandle_with_fixed_args() already handles
errors by returning a non-zero code, which is checked immediately
above. Remove the dead check.
Signed-off-by: Nishanth Menon <nm@ti.com>
---
Changes since V1:
- None.
V1: https://lore.kernel.org/all/20260508153211.3688277-10-nm@ti.com/
drivers/soc/ti/knav_dma.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/soc/ti/knav_dma.c b/drivers/soc/ti/knav_dma.c
index 462d181ca564..7ba6fd58e9ce 100644
--- a/drivers/soc/ti/knav_dma.c
+++ b/drivers/soc/ti/knav_dma.c
@@ -387,11 +387,6 @@ static int of_channel_match_helper(struct device_node *np, const char *name,
return -ENODEV;
}
- if (args.args[0] < 0) {
- dev_err(kdev->dev, "Missing args for %s\n", name);
- return -ENODEV;
- }
-
return args.args[0];
}
--
2.47.0
next prev parent reply other threads:[~2026-05-12 17:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 17:06 [PATCH V2 00/11] soc: ti: keystone/k3 navigator queue/dma/ringacc cleanups Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 01/11] soc: ti: knav_qmss: Remove remaining redundant ENOMEM printks Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 02/11] soc: ti: knav_qmss: Rename global kdev to knav_qdev to fix -Wshadow Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 03/11] soc: ti: knav_qmss: Inline lockdep condition in for_each_handle_rcu Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 04/11] soc: ti: knav_qmss: Fix kernel-doc Return: tags Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 05/11] soc: ti: knav_qmss: Use %pe to print PTR_ERR() Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 06/11] soc: ti: knav_qmss: Fix __iomem annotations and __be32 type Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 07/11] soc: ti: knav_qmss_acc: Fix kernel-doc Return: tag Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 08/11] soc: ti: knav_dma: Remove unused DMA_PRIO_MASK macro Nishanth Menon
2026-05-12 17:06 ` Nishanth Menon [this message]
2026-05-12 17:06 ` [PATCH V2 10/11] soc: ti: knav_dma: Use IOMEM_ERR_PTR() in pktdma_get_regs() Nishanth Menon
2026-05-12 17:06 ` [PATCH V2 11/11] soc: ti: k3-ringacc: Use str_enabled_disabled() helper Nishanth Menon
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