add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/include/linux/mailbox/zynqmp-ipi-message.h
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..
@@ -9,7 +9,7 @@
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  * @data: message payload
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  *
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  * This is the structure for data used in mbox_send_message
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- * the maximum length of data buffer is fixed to 12 bytes.
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+ * the maximum length of data buffer is fixed to 32 bytes.
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  * Client is supposed to be aware of this.
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  */
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 struct zynqmp_ipi_message {