linux-kernel - Re: [PATCH v6] bus: mhi: host: don't free bhie tables during suspend/hibernation

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Message-ID: <175014516328.16478.17449149106590025798.b4-ty@kernel.org>
Date: Tue, 17 Jun 2025 12:58:51 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Jeff Johnson <jjohnson@...nel.org>,
	Jeff Hugo <jeff.hugo@....qualcomm.com>,
	Youssef Samir <quic_yabdulra@...cinc.com>,
	Matthew Leung <quic_mattleun@...cinc.com>,
	Carl Vanderlip <quic_carlv@...cinc.com>,
	Yan Zhen <yanzhen@...o.com>,
	Jacek Lawrynowicz <jacek.lawrynowicz@...ux.intel.com>,
	Alex Elder <elder@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Kunwu Chan <chentao@...inos.cn>,
	"Dr. David Alan Gilbert" <linux@...blig.org>,
	Troy Hanson <quic_thanson@...cinc.com>,
	Manivannan Sadhasivam <mani@...nel.org>,
	Muhammad Usama Anjum <usama.anjum@...labora.com>
Cc: kernel@...labora.com,
	sebastian.reichel@...labora.com,
	Jeff Johnson <jeff.johnson@....qualcomm.com>,
	Baochen Qiang <quic_bqiang@...cinc.com>,
	Sumit Garg <sumit.garg@...nel.org>,
	mhi@...ts.linux.dev,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-wireless@...r.kernel.org,
	ath11k@...ts.infradead.org,
	ath12k@...ts.infradead.org
Subject: Re: [PATCH v6] bus: mhi: host: don't free bhie tables during suspend/hibernation


On Fri, 16 May 2025 23:49:31 +0500, Muhammad Usama Anjum wrote:
> Fix dma_direct_alloc() failure at resume time during bhie_table
> allocation because of memory pressure. There is a report where at
> resume time, the memory from the dma doesn't get allocated and MHI
> fails to re-initialize.
> 
> To fix it, don't free the memory at power down during suspend /
> hibernation. Instead, use the same allocated memory again after every
> resume / hibernation. This patch has been tested with resume and
> hibernation both.
> 
> [...]

Applied, thanks!

[1/1] bus: mhi: host: don't free bhie tables during suspend/hibernation
      commit: df75d6d7ce922645e674f5d591c7333f11027cdc

Note: I've modified the patch little bit to rename __mhi_unprepare_keep_dev to
mhi_deinit_dev_ctxt() and also reworded the description.

Best regards,
-- 
Manivannan Sadhasivam <mani@...nel.org>