Re: Please apply commit 06e472acf964 ("scsi: mpt3sas: Remove usage of dma_get_required_mask() API") to stable series

[Salvatore Bonaccorso <carnil@debian.org>]

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hi Martin, hi Sreekanth,

On Mon, Mar 06, 2023 at 08:16:35PM -0500, Martin K. Petersen wrote:
> 
> Hi Salvatore!
> 
> > Sreekanth and Martin is this still on your radar?
> 
> Broadcom will have to provide a suitable fix for the relevant older
> stable releases. It is the patch author's responsibility to provide
> backports.
> 
> > as 9df650963bf6 picking as well is not an option.
> 
> Why not?

Thanks to Martin Wilck from SUSE to get me understanding the picture.
The problem is that e0e0747de0ea ("scsi: mpt3sas:
Fix return value check of dma_get_required_mask()") was backported to
several series. In mainline though the mis-merge did undo that. So I
believe the right thing would be to revert first in the stable series
where it was applied (5.10.y, 5.15.y) the commit e0e0747de0ea ("scsi:
mpt3sas: Fix return value check of dma_get_required_mask()")  and then
on top of this revert apply the patches:

9df650963bf6 ("scsi: mpt3sas: Don't change DMA mask while reallocating pools")
1a2dcbdde82e ("scsi: mpt3sas: re-do lost mpt3sas DMA mask fix")
06e472acf964 ("scsi: mpt3sas: Remove usage of dma_get_required_mask() API")

Attached mbox file implements this.

Does that looks now good for resolving the regression?

Regards,
Salvatore

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