6.12-stable review patch. If anyone has any objections, please let me know.
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From: Chaohai Chen wdhh66@163.com
[ Upstream commit b50532318793d28a7628c1ffc129a2226e83e495 ]
The SPC document states that "The COMMAND DATA LENGTH field indicates the length in bytes of the command descriptor list".
The length should be subtracted by 4 to represent the length of the description list, not 3.
Signed-off-by: Chaohai Chen wdhh66@163.com Link: https://lore.kernel.org/r/20250115070739.216154-1-wdhh66@163.com Reviewed-by: Dmitry Bogdanov d.bogdanov@yadro.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/target/target_core_spc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index ea14a38356814..61c065702350e 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -2243,7 +2243,7 @@ spc_emulate_report_supp_op_codes(struct se_cmd *cmd) response_length += spc_rsoc_encode_command_descriptor( &buf[response_length], rctd, descr); } - put_unaligned_be32(response_length - 3, buf); + put_unaligned_be32(response_length - 4, buf); } else { response_length = spc_rsoc_encode_one_command_descriptor( &buf[response_length], rctd, descr,