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Message-ID: <aLmoE8CznVPres5r@kspp>
Date: Thu, 4 Sep 2025 16:54:11 +0200
From: "Gustavo A. R. Silva" <gustavoars@...nel.org>
To: Jack Wang <jinpu.wang@...ud.ionos.com>,
	"James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Cc: linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-hardening@...r.kernel.org
Subject: [PATCH v2][next] scsi: pm80xx: Avoid -Wflex-array-member-not-at-end
 warnings

Remove unused field residual_count in a couple of structures,
and with this, fix the following -Wflex-array-member-not-at-end
warnings:

drivers/scsi/pm8001/pm8001_hwi.h:342:33: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/scsi/pm8001/pm80xx_hwi.h:561:32: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
Changes in v2:
 - Remove unused field residual_count. (James)

v1:
 - Link: https://lore.kernel.org/linux-hardening/aLiMoNzLs1_bu4eJ@kspp/

 drivers/scsi/pm8001/pm8001_hwi.h | 3 ++-
 drivers/scsi/pm8001/pm80xx_hwi.h | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.h b/drivers/scsi/pm8001/pm8001_hwi.h
index fc2127dcb58d..170853dbf952 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.h
+++ b/drivers/scsi/pm8001/pm8001_hwi.h
@@ -339,8 +339,9 @@ struct ssp_completion_resp {
 	__le32	status;
 	__le32	param;
 	__le32	ssptag_rescv_rescpad;
+
+	/* Must be last --ends in a flexible-array member. */
 	struct ssp_response_iu  ssp_resp_iu;
-	__le32	residual_count;
 } __attribute__((packed, aligned(4)));
 
 
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index eb8fd37b2066..b13d42701b1b 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -558,8 +558,9 @@ struct ssp_completion_resp {
 	__le32	status;
 	__le32	param;
 	__le32	ssptag_rescv_rescpad;
+
+	/* Must be last --ends in a flexible-array member. */
 	struct ssp_response_iu ssp_resp_iu;
-	__le32	residual_count;
 } __attribute__((packed, aligned(4)));
 
 #define SSP_RESCV_BIT	0x00010000
-- 
2.43.0


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