This is a note to let you know that I've just added the patch titled
dmaengine: at_hdmac: Fix at_lli struct definition
to the 5.4-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:
dmaengine-at_hdmac-fix-at_lli-struct-definition.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f1171bbdd2ba2a50ee64bb198a78c268a5baf5f1 Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Date: Tue, 25 Oct 2022 12:02:35 +0300
Subject: dmaengine: at_hdmac: Fix at_lli struct definition
From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
commit f1171bbdd2ba2a50ee64bb198a78c268a5baf5f1 upstream.
Those hardware registers are all of 32 bits, while dma_addr_t ca be of
type u64 or u32 depending on CONFIG_ARCH_DMA_ADDR_T_64BIT. Force u32 to
comply with what the hardware expects.
Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Acked-by: Nicolas Ferre <nicolas.ferre@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@xxxxxxxxxxxxx
Link: https://lore.kernel.org/r/20221025090306.297886-2-tudor.ambarus@xxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/at_hdmac_regs.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -164,13 +164,13 @@
/* LLI == Linked List Item; aka DMA buffer descriptor */
struct at_lli {
/* values that are not changed by hardware */
- dma_addr_t saddr;
- dma_addr_t daddr;
+ u32 saddr;
+ u32 daddr;
/* value that may get written back: */
- u32 ctrla;
+ u32 ctrla;
/* more values that are not changed by hardware */
- u32 ctrlb;
- dma_addr_t dscr; /* chain to next lli */
+ u32 ctrlb;
+ u32 dscr; /* chain to next lli */
};
/**
Patches currently in stable-queue which might be from tudor.ambarus@xxxxxxxxxxxxx are
queue-5.4/dmaengine-at_hdmac-don-t-start-transactions-at-tx_submit-level.patch
queue-5.4/dmaengine-at_hdmac-fix-at_lli-struct-definition.patch
queue-5.4/dmaengine-at_hdmac-fix-impossible-condition.patch
queue-5.4/dmaengine-at_hdmac-check-return-code-of-dma_async_device_register.patch
queue-5.4/dmaengine-at_hdmac-don-t-allow-cpu-to-reorder-channel-enable.patch
queue-5.4/dmaengine-at_hdmac-fix-completion-of-unissued-descriptor-in-case-of-errors.patch
