RE: [PATCH v3 0/2] Fix CPU stall in xilinx_dma_poll_timeout caused by passing delay_us=0

From: Gupta, Suraj

Date: Wed Apr 01 2026 - 14:37:54 EST


[AMD Official Use Only - AMD Internal Distribution Only]

> -----Original Message-----
> From: Alex Bereza <alex@bereza.email>
> Sent: Wednesday, April 1, 2026 4:27 PM
> To: Vinod Koul <vkoul@xxxxxxxxxx>; Frank Li <Frank.Li@xxxxxxxxxx>; Simek,
> Michal <michal.simek@xxxxxxx>; Geert Uytterhoeven
> <geert+renesas@xxxxxxxxx>; Ulf Hansson <ulf.hansson@xxxxxxxxxx>; Arnd
> Bergmann <arnd@xxxxxxxx>; Tony Lindgren <tony@xxxxxxxxxxx>; Rao,
> Appana Durga Kedareswara <appana.durga.kedareswara.rao@xxxxxxx>
> Cc: dmaengine@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-
> kernel@xxxxxxxxxxxxxxx; Alex Bereza <alex@bereza.email>
> Subject: [PATCH v3 0/2] Fix CPU stall in xilinx_dma_poll_timeout caused by
> passing delay_us=0
>
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> Signed-off-by: Alex Bereza <alex@bereza.email>
> ---

For the series, Reviewed-by: Suraj Gupta <suraj.gupta2@xxxxxxx>

Thanks!
Suraj

> Changes in v3:
> - patch 1/2:
> - Fix commit message: remove blank line between tags
> - patch 2/2: nothing
> - Link to v2: https://patch.msgid.link/20260401-fix-atomic-poll-timeout-
> regression-v2-0-68a265e3770f@bereza.email
>
> Changes in v2:
> - Fixed the Fixes: tags as suggested by Geert Uytterhoeven
> <geert+renesas@xxxxxxxxx> - thanks!
> - Split the renaming of XILINX_DMA_LOOP_COUNT into separate commit
> - Link to v1: https://patch.msgid.link/20260331-fix-atomic-poll-timeout-
> regression-v1-1-5b7bd96eaca0@bereza.email
>
> ---
> Alex Bereza (2):
> dmaengine: xilinx_dma: Fix CPU stall in xilinx_dma_poll_timeout
> dmaengine: xilinx_dma: Rename XILINX_DMA_LOOP_COUNT
>
> drivers/dma/xilinx/xilinx_dma.c | 26 ++++++++++++++++----------
> 1 file changed, 16 insertions(+), 10 deletions(-)
> ---
> base-commit: b7560798466a07d9c3fb011698e92c335ab28baf
> change-id: 20260330-fix-atomic-poll-timeout-regression-4f4e3baf3fd7
>
> Best regards,
> --
> Alex Bereza <alex@bereza.email>
>