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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-05 09:55:37 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-05 09:56:08 +0100 |
| commit | 85c4efbe608887cbce675fad3288172046f74713 (patch) | |
| tree | 42aa0a76ec945920d04344a6c2a7f7c86d054c28 /tools/include/uapi/linux/const.h | |
| parent | bf373d2919d98f3d1fe1b19a0304f72fe74386d9 (diff) | |
| parent | 59b723cd2adbac2a34fc8e12c74ae26ae45bf230 (diff) | |
| download | lwn-85c4efbe608887cbce675fad3288172046f74713.tar.gz lwn-85c4efbe608887cbce675fad3288172046f74713.zip | |
Merge v6.12-rc6 into usb-next
We need the USB fixes in here as well, and this resolves a merge
conflict in:
drivers/usb/typec/tcpm/tcpm.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20241101150730.090dc30f@canb.auug.org.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/include/uapi/linux/const.h')
| -rw-r--r-- | tools/include/uapi/linux/const.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/const.h b/tools/include/uapi/linux/const.h index a429381e7ca5..e16be0d37746 100644 --- a/tools/include/uapi/linux/const.h +++ b/tools/include/uapi/linux/const.h @@ -28,6 +28,23 @@ #define _BITUL(x) (_UL(1) << (x)) #define _BITULL(x) (_ULL(1) << (x)) +#if !defined(__ASSEMBLY__) +/* + * Missing asm support + * + * __BIT128() would not work in the asm code, as it shifts an + * 'unsigned __init128' data type as direct representation of + * 128 bit constants is not supported in the gcc compiler, as + * they get silently truncated. + * + * TODO: Please revisit this implementation when gcc compiler + * starts representing 128 bit constants directly like long + * and unsigned long etc. Subsequently drop the comment for + * GENMASK_U128() which would then start supporting asm code. + */ +#define _BIT128(x) ((unsigned __int128)(1) << (x)) +#endif + #define __ALIGN_KERNEL(x, a) __ALIGN_KERNEL_MASK(x, (__typeof__(x))(a) - 1) #define __ALIGN_KERNEL_MASK(x, mask) (((x) + (mask)) & ~(mask)) |