From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 37AED3AFD18 for ; Tue, 9 Jun 2026 22:44:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781045059; cv=none; b=mSkd8RVYy1zTooJ6xFv0UMdout8sa0nuLSb4Xteh+1wjLBsP4wjQEkvkKn5JYTQeTUYOoA6i3gSVde01fc3/yvDIuWI2PuH1XJlpsayr7Qoajy+fwYB4ub0txzAJi59kXw6Le71UMOvD10rN4MaPG4y+3qT9NYgU3y0SJ5LEXgk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781045059; c=relaxed/simple; bh=dQWF/G7X0LA1GBYJ1jo4pWSR+8PRH2YFqc8sNncq3Hg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Z5CP8El8081dhWocFfGK1a/10gmjI7NGDWdJjWXIRprfRSwZLPC8eoCZISRq3jchC64E6PI/2arfsOfNVP2MtXhq7ji58/TrT01IwurNDVoGGosI3I1Gh4MAH4pYoeI5YQHC45k9A0AgWm4tf6z3XmbV+UnJQiR8Dcql8xI8oEQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FFE3rWEv; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FFE3rWEv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 37D441F00893; Tue, 9 Jun 2026 22:44:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781045057; bh=LpyHzXW8GjLw4GoaJ8bmNMFISB5FIvBT1/CLylx/Vww=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=FFE3rWEv3mUR9JtRpXN5TkCXcIk7V3PMyzg8neUQ6SDbgAZA/xJqaO8A+wlfNuJMV STkxfvkOhPS0W5+9v5+KxRP7MV0dxp/VkQemvRHhiuNFTuhfFQGdU0dT9yHwEkQcU9 kqQqumorEBdVWhoE9sHcrqUgRWagM9I+BPF0EdsT3PAktY6H/EPL9wpepziUWYbJiD ZPYY739tXI5rDwtCARMA/6dLWSGCY0iZoVKXoFt/LS+iH8EtV4qwg2O9082K+8Gaa4 cfV7EMPnoDUeRepVDRYLUCpNEFOWM1nMiMUyZHa9So4nRuWeupAxHfbQTOfC/h52Eu 71wkVG2e35aXw== Message-ID: <77abee6c-922c-4079-a89d-35fa285df49a@kernel.org> Date: Tue, 9 Jun 2026 17:44:16 -0500 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V1] accel/amdxdna: Clear sva pointer after unbind To: Lizhi Hou , ogabbay@kernel.org, quic_jhugo@quicinc.com, dri-devel@lists.freedesktop.org, karol.wachowski@linux.intel.com Cc: linux-kernel@vger.kernel.org, max.zhen@amd.com, sonal.santan@amd.com References: <20260604202815.2425882-1-lizhi.hou@amd.com> Content-Language: en-US From: Mario Limonciello In-Reply-To: <20260604202815.2425882-1-lizhi.hou@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 6/4/26 15:28, Lizhi Hou wrote: > Add client->sva = NULL after the unbind makes it consistent with how > amdxdna_sva_fini() already clears the pointer after unbinding. The > IS_ERR_OR_NULL guard in sva_fini will then correctly skip the second > unbind. > > Fixes: 3cc5d7a59519 ("accel/amdxdna: Add carveout memory support for non-IOMMU systems") > Signed-off-by: Lizhi Hou Reviewed-by: Mario Limonciello (AMD) > --- > drivers/accel/amdxdna/amdxdna_pci_drv.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c > index 1f066ed8d236..65489bb3f2b0 100644 > --- a/drivers/accel/amdxdna/amdxdna_pci_drv.c > +++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c > @@ -87,6 +87,7 @@ static int amdxdna_sva_init(struct amdxdna_client *client) > client->pasid = iommu_sva_get_pasid(client->sva); > if (client->pasid == IOMMU_PASID_INVALID) { > iommu_sva_unbind_device(client->sva); > + client->sva = NULL; > XDNA_ERR(xdna, "SVA get pasid failed"); > return -ENODEV; > }