On Sat, 09 Jun 2018 17:17:45 +0530, Subhashini Rao Beerisetty said: > My question related to backward compatibility is: If an APIâ??s signature > changed from kernel version x.y.z onwards, does the mainline tree code uses > the below mentioned logic? > #if LINUX_VERSION_CODE >= KERNEL_VERSION(x,y,z) No, because whenever an in-kernel API is changed, the person changing it is responsible for fixing all the in-tree uses of the API. You only see the #ifdef above for out-of-tree drivers.
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