linux-kernel - [PATCH 1/3] media: dvb: as102-fe: Fix as10x_register

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Date: Wed, 10 Apr 2024 12:24:37 +0000
From: Ricardo Ribalda <ribalda@...omium.org>
To: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Hans Verkuil <hverkuil-cisco@...all.nl>, linux-media@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Ricardo Ribalda <ribalda@...omium.org>
Subject: [PATCH 1/3] media: dvb: as102-fe: Fix as10x_register_addr packing

This structure is embedded in multiple other structures that are packed,
which conflicts with it being aligned.

drivers/media/usb/as102/as10x_cmd.h:379:30: warning: field reg_addr within 'struct as10x_dump_memory::(unnamed at drivers/media/usb/as102/as10x_cmd.h:373:2)' is less aligned than 'struct as10x_register_addr' and is usually due to 'struct as10x_dump_memory::(unnamed at drivers/media/usb/as102/as10x_cmd.h:373:2)' being packed, which can lead to unaligned accesses [-Wunaligned-access]

Mark it as being packed.

Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
---
 drivers/media/dvb-frontends/as102_fe_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/as102_fe_types.h b/drivers/media/dvb-frontends/as102_fe_types.h
index 297f9520ebf9d..8a4e392c88965 100644
--- a/drivers/media/dvb-frontends/as102_fe_types.h
+++ b/drivers/media/dvb-frontends/as102_fe_types.h
@@ -174,6 +174,6 @@ struct as10x_register_addr {
 	uint32_t addr;
 	/* register mode access */
 	uint8_t mode;
-};
+} __packed;
 
 #endif

-- 
2.44.0.478.gd926399ef9-goog