Dear Greg & stable team,
could you please queue up the patch below for the stable-6.7 kernel? This is upstream commit: eba38cc7578bef94865341c73608bdf49193a51d
Thanks, Helge
From eba38cc7578bef94865341c73608bdf49193a51d Mon Sep 17 00:00:00 2001 From: Helge Deller deller@kernel.org Subject: [PATCH] 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...
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
diff --git a/fs/bcachefs/mean_and_variance.h b/fs/bcachefs/mean_and_variance.h index b2be565bb8f2..64df11ab422b 100644 --- a/fs/bcachefs/mean_and_variance.h +++ b/fs/bcachefs/mean_and_variance.h @@ -17,7 +17,7 @@ * Rust and rustc has issues with u128. */
-#if defined(__SIZEOF_INT128__) && defined(__KERNEL__) +#if defined(__SIZEOF_INT128__) && defined(__KERNEL__) && !defined(CONFIG_PARISC)
typedef struct { unsigned __int128 v;