C Compiler Warning Abstract
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1) warning: ISO C90 forbids mixed declarations and code
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2) warning: initialization from incompatible pointer type
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3) warning: unused variable 'socdev'
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4) warning: '**_read' defined but not used
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5) warning: passing argument 1 of 'bus_to_virt' makes integer from pointer without a cast
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6) warning: passing argument 2 of 'set_dma_irq_handler' from incompatible pointer type
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