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| author | Kathiravan Thirumoorthy <quic_kathirav@quicinc.com> | 2023-09-25 10:29:22 +0200 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2023-09-28 01:19:14 +0200 |
| commit | 3337a6fea25370d3d244ec6bb38c71ee86fcf837 (patch) | |
| tree | 0961e438a1cf83687755a0865b379ca3e031c715 /drivers/soc/qcom/llcc-qcom.c | |
| parent | soc: qcom: llcc: Handle a second device without data corruption (diff) | |
| download | linux-3337a6fea25370d3d244ec6bb38c71ee86fcf837.tar.xz linux-3337a6fea25370d3d244ec6bb38c71ee86fcf837.zip | |
firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit
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: 9a434cee773a ("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>
Diffstat (limited to 'drivers/soc/qcom/llcc-qcom.c')
0 files changed, 0 insertions, 0 deletions