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ANDROID: scsi: ufs: Allow prepare_command to return error code

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Allow variant function "prepare_command" to return error
code. This is useful for vendors to halt or retry command
execution if needed.

Signed-off-by: Stanley Chu <Stanley.Chu@mediatek.com>

Bug: 172874931
Change-Id: Ibe327ab39b83644a1c5a29d821f01c08eb7ea6f1
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
This commit is contained in:
Stanley Chu 2020-11-10 16:16:18 +08:00 committed by Greg Kroah-Hartman
parent 38945cac3d
commit 927f7e63fc
2 changed files with 10 additions and 4 deletions
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7
drivers/scsi/ufs/ufshcd.c
View File

@ -2557,7 +2557,12 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
lrbp->lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun);
lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba) ? true : false;
ufshcd_vops_prepare_command(hba, cmd->request, lrbp);
err = ufshcd_vops_prepare_command(hba, cmd->request, lrbp);
if (err) {
lrbp->cmd = NULL;
ufshcd_release(hba);
goto out;
}
ufshcd_prepare_lrbp_crypto(cmd->request, lrbp);

7
drivers/scsi/ufs/ufshcd.h
View File

@ -330,7 +330,7 @@ struct ufs_hba_variant_ops {
const union ufs_crypto_cfg_entry *cfg, int slot);
int (*fill_prdt)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
unsigned int segments);
void (*prepare_command)(struct ufs_hba *hba,
int (*prepare_command)(struct ufs_hba *hba,
struct request *rq, struct ufshcd_lrb *lrbp);
int (*update_sysfs)(struct ufs_hba *hba);
void (*send_command)(struct ufs_hba *hba, struct ufshcd_lrb *lrbp);
@ -1247,11 +1247,12 @@ static inline int ufshcd_vops_fill_prdt(struct ufs_hba *hba,
return 0;
}
static inline void ufshcd_vops_prepare_command(struct ufs_hba *hba,
static inline int ufshcd_vops_prepare_command(struct ufs_hba *hba,
struct request *rq, struct ufshcd_lrb *lrbp)
{
if (hba->vops && hba->vops->prepare_command)
hba->vops->prepare_command(hba, rq, lrbp);
return hba->vops->prepare_command(hba, rq, lrbp);
return 0;
}
static inline int ufshcd_vops_update_sysfs(struct ufs_hba *hba)