linux-kernel - [PATCH v8 3/8] scsi: ufs: export ufs_fixup_device

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Date:   Fri, 8 May 2020 16:01:10 +0800
From:   Stanley Chu <stanley.chu@...iatek.com>
To:     <linux-scsi@...r.kernel.org>, <martin.petersen@...cle.com>,
        <avri.altman@....com>, <alim.akhtar@...sung.com>,
        <jejb@...ux.ibm.com>, <asutoshd@...eaurora.org>
CC:     <beanhuo@...ron.com>, <cang@...eaurora.org>,
        <matthias.bgg@...il.com>, <bvanassche@....org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <kuohong.wang@...iatek.com>,
        <peter.wang@...iatek.com>, <chun-hung.wu@...iatek.com>,
        <andy.teng@...iatek.com>, Stanley Chu <stanley.chu@...iatek.com>
Subject: [PATCH v8 3/8] scsi: ufs: export ufs_fixup_device_setup() function

Export ufs_fixup_device_setup() to allow vendors to re-use it for
fixing device quriks on specified UFS hosts.

Signed-off-by: Stanley Chu <stanley.chu@...iatek.com>
Reviewed-by: Avri Altman <avri.altman@....com>
---
 drivers/scsi/ufs/ufshcd.c | 10 +++++++---
 drivers/scsi/ufs/ufshcd.h |  1 +
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 8d86d9a6a622..c0b2cec5dcd8 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6838,12 +6838,15 @@ static void ufshcd_wb_probe(struct ufs_hba *hba, u8 *desc_buf)
 	hba->caps &= ~UFSHCD_CAP_WB_EN;
 }
 
-static void ufshcd_fixup_dev_quirks(struct ufs_hba *hba)
+void ufshcd_fixup_dev_quirks(struct ufs_hba *hba, struct ufs_dev_fix *fixups)
 {
 	struct ufs_dev_fix *f;
 	struct ufs_dev_info *dev_info = &hba->dev_info;
 
-	for (f = ufs_fixups; f->quirk; f++) {
+	if (!fixups)
+		return;
+
+	for (f = fixups; f->quirk; f++) {
 		if ((f->wmanufacturerid == dev_info->wmanufacturerid ||
 		     f->wmanufacturerid == UFS_ANY_VENDOR) &&
 		     ((dev_info->model &&
@@ -6852,11 +6855,12 @@ static void ufshcd_fixup_dev_quirks(struct ufs_hba *hba)
 			hba->dev_quirks |= f->quirk;
 	}
 }
+EXPORT_SYMBOL_GPL(ufshcd_fixup_dev_quirks);
 
 static void ufs_fixup_device_setup(struct ufs_hba *hba)
 {
 	/* fix by general quirk table */
-	ufshcd_fixup_dev_quirks(hba);
+	ufshcd_fixup_dev_quirks(hba, ufs_fixups);
 
 	/* allow vendors to fix quirks */
 	ufshcd_vops_fixup_dev_quirks(hba);
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 897338ba67aa..4d296acadd6f 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -952,6 +952,7 @@ int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode,
 
 void ufshcd_auto_hibern8_enable(struct ufs_hba *hba);
 void ufshcd_auto_hibern8_update(struct ufs_hba *hba, u32 ahit);
+void ufshcd_fixup_dev_quirks(struct ufs_hba *hba, struct ufs_dev_fix *fixups);
 #define SD_ASCII_STD true
 #define SD_RAW false
 int ufshcd_read_string_desc(struct ufs_hba *hba, u8 desc_index,
-- 
2.18.0