Hi Ryan, what happened to that patch? I haven't found a discussion or that it was merged. I have used it and it seems solve a cross-compilation issue (have to cross-chek if it is still the case with 5.13-rc7). Maybe the maintainers did not become aware of? BR and thanks, Nikolaus Schaller https://patchwork.kernel.org/project/linux-mips/patch/z_0h2JVlIGgyiySXEyOmFhJ5_rl_EmuXR7beRMunMZRivpcO0H7LqsGa6ePHdSTkF521jUnXMM9TZb5N9mM4fduiHAxpshUkCBd7Owo43tM=@protonmail.com/ > Am 14.02.2021 um 06:01 schrieb Ryan Burns <rtburns@xxxxxxxxxxxxxx>: > > macOS does not have byteswap.h, but we can use Apple's libkern/OSByteOrder.h instead. > > This issue is encountered during cross-compilation from macOS to MIPS in nixpkgs. > You can view a log of the build failure here: > https://hydra.nixos.org/build/136015790/nixlog/1 > > Signed-off-by: Ryan Burns <rtburns@xxxxxxxxxxxxxx> > --- > arch/mips/boot/tools/relocs.h | 11 +++++++++-- > arch/mips/boot/tools/relocs_main.c | 1 - > arch/mips/tools/elf-entry.c | 11 +++++++++-- > 3 files changed, 18 insertions(+), 5 deletions(-) > > diff --git a/arch/mips/boot/tools/relocs.h b/arch/mips/boot/tools/relocs.h > index 607ff0103064..5de9bb7a7e09 100644 > --- a/arch/mips/boot/tools/relocs.h > +++ b/arch/mips/boot/tools/relocs.h > @@ -11,9 +11,16 @@ > #include <errno.h> > #include <unistd.h> > #include <elf.h> > -#include <byteswap.h> > #define USE_BSD > -#include <endian.h> > +#if defined(__APPLE__) > +# include <libkern/OSByteOrder.h> > +# define bswap_16 OSSwapInt16 > +# define bswap_32 OSSwapInt32 > +# define bswap_64 OSSwapInt64 > +#else > +# include <byteswap.h> > +# include <endian.h> > +#endif > #include <regex.h> > > void die(char *fmt, ...); > diff --git a/arch/mips/boot/tools/relocs_main.c b/arch/mips/boot/tools/relocs_main.c > index e2453a564b11..4ef51d1e6d0d 100644 > --- a/arch/mips/boot/tools/relocs_main.c > +++ b/arch/mips/boot/tools/relocs_main.c > @@ -6,7 +6,6 @@ > #include <stdlib.h> > #include <string.h> > #include <errno.h> > -#include <endian.h> > #include <elf.h> > > #include "relocs.h" > diff --git a/arch/mips/tools/elf-entry.c b/arch/mips/tools/elf-entry.c > index dbd14ff05b4c..5d2e2ab4b3b0 100644 > --- a/arch/mips/tools/elf-entry.c > +++ b/arch/mips/tools/elf-entry.c > @@ -1,7 +1,14 @@ > // SPDX-License-Identifier: GPL-2.0 > -#include <byteswap.h> > +#if defined(__APPLE__) > +# include <libkern/OSByteOrder.h> > +# define bswap_16 OSSwapInt16 > +# define bswap_32 OSSwapInt32 > +# define bswap_64 OSSwapInt64 > +#else > +# include <byteswap.h> > +# include <endian.h> > +#endif > #include <elf.h> > -#include <endian.h> > #include <inttypes.h> > #include <stdint.h> > #include <stdio.h>