MIPS: Support R_MIPS_PC{21,26} rela-style relocs
MIPS64 code uses rela-style relocs, and MIPS64r6 modules may include the new R_MIPS_PC21 & R_MIPS_PC26 relocations. We thus need to support these relocations in order to load MIPS64r6 kernel modules. They are similar to the existing R_MIPS_PC16 relocation but applying to a wider field. Implement support for them by genericising the existing R_MIPS_PC16 implementation such that it can be used for different field widths, and calling it for all 3 reloc types. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Maciej W. Rozycki <macro@imgtec.com> Cc: Kees Cook <keescook@chromium.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Alex Smith <alex.smith@imgtec.com> Cc: Steven J. Hill <sjhill@realitydiluted.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12434/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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