linux-kernel - Re: [PATCH v1 10/12] iommufd: Move _iommufd_object

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Message-ID: <20250613134625.GF1174925@nvidia.com>
Date: Fri, 13 Jun 2025 10:46:25 -0300
From: Jason Gunthorpe <jgg@...dia.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: kevin.tian@...el.com, will@...nel.org, robin.murphy@....com,
	joro@...tes.org, ddutile@...hat.com, yi.l.liu@...el.com,
	peterz@...radead.org, jsnitsel@...hat.com, praan@...gle.com,
	linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
	baolu.lu@...ux.intel.com
Subject: Re: [PATCH v1 10/12] iommufd: Move _iommufd_object_alloc out of
 driver.c

On Mon, Jun 09, 2025 at 10:13:33AM -0700, Nicolin Chen wrote:
> Now, all driver structures will be allocated by the core, i.e. no longer a
> need of driver calling _iommufd_object_alloc. Thus, move it back.
> 
> Before:
>    text	   data	    bss	    dec	    hex	filename
>    3024	    180	      0	   3204	    c84	drivers/iommu/iommufd/driver.o
>    9074	    610	     64	   9748	   2614	drivers/iommu/iommufd/main.o
> After:
>    text	   data	    bss	    dec	    hex	filename
>    2665	    164	      0	   2829	    b0d	drivers/iommu/iommufd/driver.o
>    9410	    618	     64	  10092	   276c	drivers/iommu/iommufd/main.o
> 
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
> ---
>  drivers/iommu/iommufd/iommufd_private.h |  4 +++
>  include/linux/iommufd.h                 | 10 --------
>  drivers/iommu/iommufd/driver.c          | 33 -------------------------
>  drivers/iommu/iommufd/main.c            | 32 ++++++++++++++++++++++++
>  4 files changed, 36 insertions(+), 43 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

Jason