Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Mon, 22 Apr 2024 14:47:32 +0200 | Subject | Re: [PATCH] bcachefs: Fix format specifier in validate_bset_keys() |
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Hi Kent,
On Wed, Apr 17, 2024 at 12:09 AM Kent Overstreet <kent.overstreet@linux.dev> wrote: > On Tue, Apr 16, 2024 at 08:16:02AM -0700, Nathan Chancellor wrote: > > When building for 32-bit platforms, for which size_t is 'unsigned int', > > there is a warning from a format string in validate_bset_keys(): > > > > fs/bcachefs/btree_io.c: In function 'validate_bset_keys': > > fs/bcachefs/btree_io.c:891:34: error: format '%lu' expects argument of type 'long unsigned int', but argument 12 has type 'unsigned int' [-Werror=format=] > > 891 | "bad k->u64s %u (min %u max %lu)", k->u64s, > > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > fs/bcachefs/btree_io.c:603:32: note: in definition of macro 'btree_err' > > 603 | msg, ##__VA_ARGS__); \ > > | ^~~ > > fs/bcachefs/btree_io.c:887:21: note: in expansion of macro 'btree_err_on' > > 887 | if (btree_err_on(!bkeyp_u64s_valid(&b->format, k), > > | ^~~~~~~~~~~~ > > fs/bcachefs/btree_io.c:891:64: note: format string is defined here > > 891 | "bad k->u64s %u (min %u max %lu)", k->u64s, > > | ~~^ > > | | > > | long unsigned int > > | %u > > cc1: all warnings being treated as errors > > > > BKEY_U64s is size_t so the entire expression is promoted to size_t. Use > > the '%zu' specifier so that there is no warning regardless of the width > > of size_t. > > > > Fixes: 031ad9e7dbd1 ("bcachefs: Check for packed bkeys that are too big") > > Reported-by: kernel test robot <lkp@intel.com> > > Closes: https://lore.kernel.org/oe-kbuild-all/202404130747.wH6Dd23p-lkp@intel.com/ > > Closes: https://lore.kernel.org/oe-kbuild-all/202404131536.HdAMBOVc-lkp@intel.com/ > > Signed-off-by: Nathan Chancellor <nathan@kernel.org> > > Thanks, applied
This is still not fixed in today's linux-next, while the issue is now causing breakage on several 32-bit defconfs in v6.9-rc5.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68korg
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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