diff options
| author | Helge Deller <deller@kernel.org> | 2024-01-28 09:53:55 +0100 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-02-13 21:18:49 -0500 |
| commit | 695faeb592497313689556cd6b2cc830a0f3b9a0 (patch) | |
| tree | 5421dbd711fdc83c8b458a703ca7c182514b002b | |
| parent | 66a299649c4b1dd26ef9dc69fce24fb6b12215b5 (diff) | |
bcachefs: Fix build on parisc by avoiding __multi3()
The gcc compiler on paric does support the __int128 type, although the
architecture does not have native 128-bit support.
The effect is, that the bcachefs u128_square() function will pull in the
libgcc __multi3() helper, which breaks the kernel build when bcachefs is
built as module since this function isn't currently exported in
arch/parisc/kernel/parisc_ksyms.c.
The build failure can be seen in the latest debian kernel build at:
https://buildd.debian.org/status/fetch.php?pkg=linux&arch=hppa&ver=6.7.1-1%7Eexp1&stamp=1706132569&raw=0
We prefer to not export that symbol, so fall back to the optional 64-bit
implementation provided by bcachefs and thus avoid usage of __multi3().
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
(cherry picked from commit eba38cc7578bef94865341c73608bdf49193a51d)
| -rw-r--r-- | fs/bcachefs/mean_and_variance.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/mean_and_variance.h b/fs/bcachefs/mean_and_variance.h index 647505010b39..056e797383fb 100644 --- a/fs/bcachefs/mean_and_variance.h +++ b/fs/bcachefs/mean_and_variance.h @@ -14,7 +14,7 @@ * type */ -#ifdef __SIZEOF_INT128__ +#if defined(__SIZEOF_INT128__) && defined(__KERNEL__) && !defined(CONFIG_PARISC) typedef struct { unsigned __int128 v; |