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Signed-off-by: David Sterba <dsterba@suse.com>
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Fix the following clang warning when compiling btrfs-progs:
radix-tree.c:78:21: warning: unused function 'root_gfp_mask'
[-Wunused-function]
static inline gfp_t root_gfp_mask(struct radix_tree_root *root)
^
1 warning generated.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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When running with UndefinedBehaviorSanitizer, the tests produce the following
error:
radix-tree.c:836:30: runtime error: shift exponent 18446744073709551613
is too large for 64-bit type 'unsigned long'
(That's a negative shift exponent represented as an unsigned long.)
Even though the value is discarded in those cases, it's still undefined
behavior; see the C99 standard, section 6.5.7, paragraph three: "If the
value of the right operand is negative [...] the behavior is undefined."
Signed-off-by: Adam Buchbinder <abuchbinder@google.com>
Reviewed-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
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This is done by doing a two-step conversion (rather than a one-step).
First, the variable goes from type * to void *, and then to
implicitly to void **.
(Not sure if this is "good practice", but it shuts up the compiler,
so it seems the compiler takes into account that we are actually punning
it this way.)
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