Messages in this thread | | | Date | Mon, 6 Feb 2023 13:55:01 +0100 | Subject | Re: [PATCH 0/7] Add TPMI support | From | Hans de Goede <> |
| |
Hi,
On 2/6/23 13:49, Hans de Goede wrote:
> Thank you for your patch-series, I've applied the series to my > review-hans branch: > https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans > > Note it will show up in my review-hans branch once I've pushed my > local branch there, which might take a while. > > Once I've run some tests on this branch the patches there will be > added to the platform-drivers-x86/for-next branch and eventually > will be included in the pdx86 pull-request to Linus for the next > merge-window.
One thing which I did notice, which is a pre-existing problem is that the IDA accesses in drivers/platform/x86/intel/vsec.c are not protected by any locking.
This is likely ok for now because there is only 1 PCI device per type of ida and the enumeration of the vsec devices under the PCI device is done in a single loop, so all IDA accesses are single threaded atm.
But still IMHO it would be good to protect the IDA accesses (ida_alloc() / ida_free()) with a mutex to protect against any future races.
I think that a single global static mutex inside drivers/platform/x86/intel/vsec.c to protect the ida calls there should suffice for this.
Regards,
Hans
| |