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Date: Mon, 4 Jan 2021 19:59:01 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Randall Huang <huangrandall@...gle.com>, kernel test robot <lkp@...el.com>, Stanley Chu <stanley.chu@...iatek.com>, Leo Liou <leoliou@...gle.com>, Jaegeuk Kim <jaegeuk@...gle.com>, "Martin K . Petersen" <martin.petersen@...cle.com>, Sasha Levin <sashal@...nel.org>, linux-scsi@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org Subject: [PATCH AUTOSEL 5.10 03/17] scsi: ufs: Clear UAC for RPMB after ufshcd resets From: Randall Huang <huangrandall@...gle.com> [ Upstream commit 1918651f2d7e8d58c9b7c49755c61e41ed655009 ] If RPMB is not provisioned, we may see RPMB failure after UFS suspend/resume. Inject request_sense to clear uac in ufshcd reset flow. Link: https://lore.kernel.org/r/20201201041402.3860525-1-jaegeuk@kernel.org Reported-by: kernel test robot <lkp@...el.com> Reviewed-by: Stanley Chu <stanley.chu@...iatek.com> Signed-off-by: Randall Huang <huangrandall@...gle.com> Signed-off-by: Leo Liou <leoliou@...gle.com> Signed-off-by: Jaegeuk Kim <jaegeuk@...gle.com> Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/scsi/ufs/ufshcd.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index d7e9c4bc80478..ec7005bcf61d8 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -220,6 +220,7 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba); static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd); static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag); static void ufshcd_hba_exit(struct ufs_hba *hba); +static int ufshcd_clear_ua_wluns(struct ufs_hba *hba); static int ufshcd_probe_hba(struct ufs_hba *hba, bool async); static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on, bool skip_ref_clk); @@ -6842,7 +6843,8 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba) /* Establish the link again and restore the device */ err = ufshcd_probe_hba(hba, false); - + if (!err) + ufshcd_clear_ua_wluns(hba); out: if (err) dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); @@ -8274,13 +8276,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, * handling context. */ hba->host->eh_noresume = 1; - if (hba->wlun_dev_clr_ua) { - ret = ufshcd_send_request_sense(hba, sdp); - if (ret) - goto out; - /* Unit attention condition is cleared now */ - hba->wlun_dev_clr_ua = false; - } + ufshcd_clear_ua_wluns(hba); cmd[4] = pwr_mode << 4; @@ -8301,7 +8297,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba, if (!ret) hba->curr_dev_pwr_mode = pwr_mode; -out: + scsi_device_put(sdp); hba->host->eh_noresume = 0; return ret; -- 2.27.0
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