mirror of https://gitee.com/openkylin/linux.git
staging: unisys: visorchipset: remove local_addr in handle_command
In the function handle_command, the variable local_addr is always false. So this patch is getting rid of logic when it is true. Signed-off-by: Erik Arfvidson <erik.arfvidson@gmail.com> Signed-off-by: David Kershner <david.kershner@unisys.com> Reviewed-by: David Binder <david.binder@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1508,10 +1508,11 @@ visorbus_device_resume_response(struct visor_device *dev_info, int response)
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}
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static struct parser_context *
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parser_init_byte_stream(u64 addr, u32 bytes, bool local, bool *retry)
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parser_init_byte_stream(u64 addr, u32 bytes, bool *retry)
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{
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int allocbytes = sizeof(struct parser_context) + bytes;
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struct parser_context *ctx;
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void *mapping;
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*retry = false;
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@ -1536,22 +1537,11 @@ parser_init_byte_stream(u64 addr, u32 bytes, bool local, bool *retry)
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ctx->curr = NULL;
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ctx->bytes_remaining = 0;
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ctx->byte_stream = false;
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if (local) {
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void *p;
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if (addr > virt_to_phys(high_memory - 1))
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goto err_finish_ctx;
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p = __va((unsigned long)(addr));
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memcpy(ctx->data, p, bytes);
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} else {
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void *mapping = memremap(addr, bytes, MEMREMAP_WB);
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if (!mapping)
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goto err_finish_ctx;
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memcpy(ctx->data, mapping, bytes);
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memunmap(mapping);
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}
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mapping = memremap(addr, bytes, MEMREMAP_WB);
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if (!mapping)
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goto err_finish_ctx;
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memcpy(ctx->data, mapping, bytes);
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memunmap(mapping);
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ctx->byte_stream = true;
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chipset_dev->controlvm_payload_bytes_buffered += ctx->param_bytes;
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@ -1582,12 +1572,10 @@ handle_command(struct controlvm_message inmsg, u64 channel_addr)
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u64 parm_addr;
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u32 parm_bytes;
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struct parser_context *parser_ctx = NULL;
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bool local_addr;
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struct controlvm_message ackmsg;
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int err = 0;
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/* create parsing context if necessary */
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local_addr = (inmsg.hdr.flags.test_message == 1);
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parm_addr = channel_addr + inmsg.hdr.payload_vm_offset;
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parm_bytes = inmsg.hdr.payload_bytes;
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@ -1600,21 +1588,16 @@ handle_command(struct controlvm_message inmsg, u64 channel_addr)
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bool retry = false;
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parser_ctx =
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parser_init_byte_stream(parm_addr, parm_bytes,
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local_addr, &retry);
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parser_init_byte_stream(parm_addr, parm_bytes, &retry);
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if (!parser_ctx && retry)
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return -EAGAIN;
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}
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controlvm_init_response(&ackmsg, &inmsg.hdr, CONTROLVM_RESP_SUCCESS);
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err = visorchannel_signalinsert(chipset_dev->controlvm_channel,
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CONTROLVM_QUEUE_ACK, &ackmsg);
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if (err)
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return err;
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if (!local_addr) {
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controlvm_init_response(&ackmsg, &inmsg.hdr,
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CONTROLVM_RESP_SUCCESS);
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err = visorchannel_signalinsert(chipset_dev->controlvm_channel,
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CONTROLVM_QUEUE_ACK,
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&ackmsg);
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if (err)
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return err;
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}
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switch (inmsg.hdr.id) {
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case CONTROLVM_CHIPSET_INIT:
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err = chipset_init(&inmsg);
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