diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2024-10-01 18:09:41 +0200 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2024-10-01 18:09:41 +0200 |
| commit | 2cd86f02c017bf9733e5cd891381b7d40f6f37ad (patch) | |
| tree | 839e63bdf31a2d1ec68fa8d6fb8dc821f8fcf243 /include/linux/bits.h | |
| parent | abf201f6ce14c4ceeccde5471bdf59614b83a3d8 (diff) | |
| parent | 43102a2012c2e2f8424d7eef52aede8e73cf2fed (diff) | |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
Required for a panthor fix that broke when
FOP_UNSIGNED_OFFSET was added in place of FMODE_UNSIGNED_OFFSET.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'include/linux/bits.h')
| -rw-r--r-- | include/linux/bits.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/bits.h b/include/linux/bits.h index 0eb24d21aac2..60044b608817 100644 --- a/include/linux/bits.h +++ b/include/linux/bits.h @@ -36,4 +36,19 @@ #define GENMASK_ULL(h, l) \ (GENMASK_INPUT_CHECK(h, l) + __GENMASK_ULL(h, l)) +#if !defined(__ASSEMBLY__) +/* + * Missing asm support + * + * __GENMASK_U128() depends on _BIT128() which would not work + * in the asm code, as it shifts an 'unsigned __init128' data + * type instead of direct representation of 128 bit constants + * such as long and unsigned long. The fundamental problem is + * that a 128 bit constant will get silently truncated by the + * gcc compiler. + */ +#define GENMASK_U128(h, l) \ + (GENMASK_INPUT_CHECK(h, l) + __GENMASK_U128(h, l)) +#endif + #endif /* __LINUX_BITS_H */ |