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linux/drivers/i3c/master
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Stanley Chu c658e1302e i3c: master: svc: Use readsb helper for reading MDB 
commit c06acf7143 upstream.

The target can send the MDB byte followed by additional data bytes.
The readl on MRDATAB reads one actual byte, but the readsl advances
the destination pointer by 4 bytes. This causes the subsequent payload
to be copied to wrong position in the destination buffer.

Cc: stable@kernel.org
Fixes: dd3c52846d ("i3c: master: svc: Add Silvaco I3C master driver")
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250318053606.3087121-3-yschu@nuvoton.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-05-02 07:44:03 +02:00
..
mipi-i3c-hci i3c: mipi-i3c-hci: Mask ring interrupts before ring stop request 2024-12-14 19:51:41 +01:00
dw-i3c-master.c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-03-08 19:12:37 +01:00
i3c-master-cdns.c i3c: master: cdns: Update maximum prescaler value for i2c clock 2024-02-23 08:54:50 +01:00
Kconfig i3c: master: svc: Add Silvaco I3C master driver 2021-02-06 00:43:29 +01:00
Makefile i3c: master: svc: Add Silvaco I3C master driver 2021-02-06 00:43:29 +01:00
svc-i3c-master.c i3c: master: svc: Use readsb helper for reading MDB 2025-05-02 07:44:03 +02:00