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Kathiravan Thirumoorthy 628e76e684 firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit

commit 3337a6fea2 upstream.

Per the "SMC calling convention specification", the 64-bit calling
convention can only be used when the client is 64-bit. Whereas the
32-bit calling convention can be used by either a 32-bit or a 64-bit
client.

Currently during SCM probe, irrespective of the client, 64-bit calling
convention is made, which is incorrect and may lead to the undefined
behaviour when the client is 32-bit. Let's fix it.

Cc: stable@vger.kernel.org
Fixes: 9a434cee77 ("firmware: qcom_scm: Dynamically support SMCCC and legacy conventions")
Reviewed-By: Elliot Berman <quic_eberman@quicinc.com>
Signed-off-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
Link: https://lore.kernel.org/r/20230925-scm-v3-1-8790dff6a749@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-11-28 16:56:29 +00:00

arm_ffa

firmware: arm_ffa: Assign the missing IDR allocation ID to the FFA device

2023-11-20 11:08:21 +01:00

arm_scmi

firmware: arm_scmi: Drop OF node reference in the transport channel setup

2023-08-11 15:13:56 +02:00

broadcom

…

efi

x86/efistub: Fix PCI ROM preservation in mixed mode

2023-09-19 12:22:31 +02:00