FAILED: patch "[PATCH] dmaengine: loongson2-apb: Change GENMASK to GENMASK_ULL" failed to apply to 6.12-stable tree

[<gregkh@linuxfoundation.org>]

The patch below does not apply to the 6.12-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-6.12.y
git checkout FETCH_HEAD
git cherry-pick -x 4b65d5322e1d8994acfdb9b867aa00bdb30d177b
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024122721-badge-research-e542@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^..

Possible dependencies:



thanks,

greg k-h

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

From 4b65d5322e1d8994acfdb9b867aa00bdb30d177b Mon Sep 17 00:00:00 2001
From: Binbin Zhou <zhoubinbin@loongson.cn>
Date: Mon, 28 Oct 2024 17:34:13 +0800
Subject: [PATCH] dmaengine: loongson2-apb: Change GENMASK to GENMASK_ULL

Fix the following smatch static checker warning:

drivers/dma/loongson2-apb-dma.c:189 ls2x_dma_write_cmd()
warn: was expecting a 64 bit value instead of '~(((0)) + (((~((0))) - (((1)) << (0)) + 1) & (~((0)) >> ((8 * 4) - 1 - (4)))))'

The GENMASK macro used "unsigned long", which caused build issues when
using a 32-bit toolchain because it would try to access bits > 31. This
patch switches GENMASK to GENMASK_ULL, which uses "unsigned long long".

Fixes: 71e7d3cb6e55 ("dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/87cdc025-7246-4548-85ca-3d36fdc2be2d@stanley.mountain/
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/20241028093413.1145820-1-zhoubinbin@loongson.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/loongson2-apb-dma.c b/drivers/dma/loongson2-apb-dma.c
index 367ed34ce4da..c528f02b9f84 100644
--- a/drivers/dma/loongson2-apb-dma.c
+++ b/drivers/dma/loongson2-apb-dma.c
@@ -31,7 +31,7 @@
 #define LDMA_ASK_VALID		BIT(2)
 #define LDMA_START		BIT(3) /* DMA start operation */
 #define LDMA_STOP		BIT(4) /* DMA stop operation */
-#define LDMA_CONFIG_MASK	GENMASK(4, 0) /* DMA controller config bits mask */
+#define LDMA_CONFIG_MASK	GENMASK_ULL(4, 0) /* DMA controller config bits mask */
 
 /* Bitfields in ndesc_addr field of HW descriptor */
 #define LDMA_DESC_EN		BIT(0) /*1: The next descriptor is valid */