[PATCH next 0/2] btrfs: Fix build warnings for arm

From: Andreas FÃrber
Date: Fri Nov 08 2019 - 16:38:58 EST


Hello Wenruo and Dave,

This mini-series fixes two build warnings found while cross-compiling for arm,
using openSUSE's cross-arm-binutils and cross-arm-none-gcc9 packages.

Replacing BUG_ON() with btrfs_crit() error handling is noble work, but please
be careful not to hardcode format specifiers for x86_64's size_t.

https://www.kernel.org/doc/Documentation/printk-formats.txt

In one case it could've been noticed during review, in another it was hidden
through a macro and would've only been found through compile-testing.
Probably a 32-bit i386 build would do; otherwise ARCH=arm multi_v7_defconfig
plus CONFIG_BTRFS_FS should reproduce.

It's around for maybe three weeks, so I wonder why kbuild bot didn't catch it.

Cheers,
Andreas

Andreas FÃrber (2):
btrfs: tree-checker: Fix error format string
btrfs: extent-tree: Fix error format string

fs/btrfs/extent-tree.c | 2 +-
fs/btrfs/tree-checker.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

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2.16.4