[PATCH 0/1] Fix a regression in 6.13 kernel

[Maurizio Lombardi]

Some time ago Mikhail Gavrilov reported a regression against kernel 6.13
introduced by commit beadf0088501d9dcf2 ("nvme-pci: reverse request order in nvme_queue_rqs")

https://lore.kernel.org/linux-nvme/CABXGCsMcxu3pCF8jYPeqF_jN34saBwc8Fci+c-Dg2Lh7rqvuFQ@mail.gmail.com/

I was not able to reproduce the bug, but Mikhail reported that this patch
fixed it for him:
https://lore.kernel.org/linux-nvme/CABXGCsMd_xv8jPDF_sFYhwd8GtANZ23nbaSJuCxQRO7cjPtgWg@mail.gmail.com/

I think the problem here is that nvme_write_sq_db() ends up                                                                                                
being called even when the rqlist is empty and this couldn't happen before                                                                                               
the changes introduced by beadf0088501d9dcf2

Maurizio Lombardi (1):
  nvme-pci: do not call nvme_write_sq_db() if the commands list is empty

 drivers/nvme/host/pci.c | 3 +++
 1 file changed, 3 insertions(+)

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2.43.5