On 2025-06-27 12:34, Christophe Leroy wrote:


Le 27/06/2025 à 17:32, Aurabindo Pillai a écrit :
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There are plenty of header includes like:

         #include <asm/kmap_size.h>

Yes and in reality that includes those,

./arch/arm64/include/generated/asm/kmap_size.h
./arch/riscv/include/generated/asm/kmap_size.h
./arch/arc/include/generated/asm/kmap_size.h
./arch/x86/include/generated/asm/kmap_size.h
./arch/powerpc/include/generated/asm/kmap_size.h
./arch/arm/include/generated/asm/kmap_size.h

Which contain:

$ cat arch/powerpc/include/generated/asm/kmap_size.h
#include <asm-generic/kmap_size.h>

So what is the problem really ?

Thanks for the explanation. I was trying to reuse some driver source code in another project such that it compiles the related files in Linux and ran into a compilation issue, and the error was that the header file asm-generic/kmap_size.h was not found.

I just realized that once the kernel is built, the path asm/kmap_size.h will exist, and hence there is no need for this patch.
--
Thanks & Regards,
Aurabindo Pillai


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