On Sun, Jan 29, 2017 at 1:48 PM Ozgur Karatas <[email protected]> wrote:
> > > 29.01.2017, 10:05, "Amit Kumar" <[email protected]>: > > > On Thu, Jan 26, 2017 at 12:31 PM Greg KH <[email protected]> wrote: > > On Thu, Jan 26, 2017 at 11:08:48AM +0530, Amit Kumar wrote: > > Hi, > > For last several days when I build arm64/defconfig even against > > next-20170125, I > > get the following error. > > arch/arm64/crypto/crc32-arm64.c:1:0: error: unknown feature modifier > > ‘crc’ > > /* > > ^ > > make[1]: *** [arch/arm64/crypto/crc32-arm64.o] Error 1 > > make: *** [arch/arm64/crypto] Error 2 > > > > Have you tried asking on the linux arm mailing list? > > > > Thank you for your reply. > I'm a newbie and not competent enough to sort out this problem, so I have > sent mail to kernelnewbies to bring this issue to the Linux Kernel > Community. I think that mailing list is more suitable if I were able create > a patch. I am learning kernel development and very soon I'll start > contributing to Linux Kernel > > > Hello, > > you are welcome firstly and of course you will contribute to the > development and thanks. Please find and understand to how to debug C code? > What happens when a kernel module fails? How to fix to compilation errors? > > The error in the example is obvious, should be examine to crc32-arm64.c > code, The kernel can't initialize to crc32-arm64.o module and it may be a > feature errors. > > Please review crc32-arm64.c > checkpatch.pl check to crc32-arm64.c > > run make: > > $ make M=arch/arm64/crypto/ > LD arch/arm64/crypto//built-in.o > Building modules, stage 2. > MODPOST 0 modules > > Module created! Good! > Check module, > > $ make arch/arm64/crypto/crc32-arm64.o > CHK include/config/kernel.release > CHK include/generated/uapi/linux/version.h > CHK include/generated/utsrelease.h > CHK include/generated/bounds.h > CHK include/generated/timeconst.h > CHK include/generated/asm-offsets.h > CALL scripts/checksyscalls.sh > CC arch/arm64/crypto/crc32-arm64.o > Thank you for your reply. I think these steps will be helpful in debugging in future. > > Regards, > > ~Ozgur > >
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