linux-kernel - [PATCH 5.9 075/255] scsi: ufs: Fix missing brace warning for old compilers

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Date:   Tue, 17 Nov 2020 14:03:35 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eric Biggers <ebiggers@...gle.com>,
        Pujin Shi <shipujin.t@...il.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>
Subject: [PATCH 5.9 075/255] scsi: ufs: Fix missing brace warning for old compilers

From: Pujin Shi <shipujin.t@...il.com>

commit 6500251e590657066a227dce897a0392f302af24 upstream.

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

Link: https://lore.kernel.org/r/20201002063538.1250-1-shipujin.t@gmail.com
Fixes: 70297a8ac7a7 ("scsi: ufs: UFS crypto API")
Reviewed-by: Eric Biggers <ebiggers@...gle.com>
Signed-off-by: Pujin Shi <shipujin.t@...il.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/ufs/ufshcd-crypto.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/scsi/ufs/ufshcd-crypto.c
+++ b/drivers/scsi/ufs/ufshcd-crypto.c
@@ -59,7 +59,7 @@ static int ufshcd_crypto_keyslot_program
 	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 u
 	 * 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);
 }