linux-kernel - [PATCH v2] scsi: ufs: fix missing brace warning for old compilers

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Date:   Fri,  2 Oct 2020 14:35:38 +0800
From:   Pujin Shi <shipujin.t@...il.com>
To:     "James E . J . Bottomley" <jejb@...ux.ibm.com>,
        "Martin K . Petersen" <martin.petersen@...cle.com>
Cc:     Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Eric Biggers <ebiggers@...gle.com>,
        Satya Tangirala <satyat@...gle.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        hankinsea@...il.com, shipujin.t@...il.com
Subject: [PATCH v2] scsi: ufs: fix missing brace warning for old compilers

For older versions of gcc, the array = {0}; will cause warnings:

drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_crypto_keyslot_program':
drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: missing braces around initializer [-Wmissing-braces]
  union ufs_crypto_cfg_entry cfg = { 0 };
        ^
drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: (near initialization for 'cfg.reg_val') [-Wmissing-braces]
drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_clear_keyslot':
drivers/scsi/ufs/ufshcd-crypto.c:103:8: warning: missing braces around initializer [-Wmissing-braces]
  union ufs_crypto_cfg_entry cfg = { 0 };
        ^
2 warnings generated

Fixes: 70297a8ac7a7 ("scsi: ufs: UFS crypto API")
Signed-off-by: Pujin Shi <shipujin.t@...il.com>
---
 drivers/scsi/ufs/ufshcd-crypto.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/ufs/ufshcd-crypto.c b/drivers/scsi/ufs/ufshcd-crypto.c
index d2edbd960ebf..07310b12a5dc 100644
--- a/drivers/scsi/ufs/ufshcd-crypto.c
+++ b/drivers/scsi/ufs/ufshcd-crypto.c
@@ -59,7 +59,7 @@ static int ufshcd_crypto_keyslot_program(struct blk_keyslot_manager *ksm,
 	u8 data_unit_mask = key->crypto_cfg.data_unit_size / 512;
 	int i;
 	int cap_idx = -1;
-	union ufs_crypto_cfg_entry cfg = { 0 };
+	union ufs_crypto_cfg_entry cfg = {};
 	int err;
 
 	BUILD_BUG_ON(UFS_CRYPTO_KEY_SIZE_INVALID != 0);
@@ -100,7 +100,7 @@ static int ufshcd_clear_keyslot(struct ufs_hba *hba, int slot)
 	 * Clear the crypto cfg on the device. Clearing CFGE
 	 * might not be sufficient, so just clear the entire cfg.
 	 */
-	union ufs_crypto_cfg_entry cfg = { 0 };
+	union ufs_crypto_cfg_entry cfg = {};
 
 	return ufshcd_program_key(hba, &cfg, slot);
 }
-- 
2.18.1