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livepatch: samples: non static warnings fix

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Sparse reported warnings about non-static symbols. For the variables
a simple static attribute is fine - for the functions referenced by
livepatch via klp_func the symbol-names must be unmodified in the
symbol table and the patchable code has to be emitted. The resolution
is to attach __used attribute to the shared statically declared functions.

Link: https://lore.kernel.org/lkml/1544965657-26804-1-git-send-email-hofrat@osadl.org/
Suggested-by: Joe Lawrence <joe.lawrence@redhat.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Nicholas Mc Guire
2019-01-24 02:48:16 +01:00
committed by Jiri Kosina
parent a6c34247af
commit b73d5dc722
3 changed files with 10 additions and 9 deletions
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4
samples/livepatch/livepatch-shadow-fix2.c
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@@ -50,7 +50,7 @@ struct dummy {
unsigned long jiffies_expire;
};
bool livepatch_fix2_dummy_check(struct dummy *d, unsigned long jiffies)
static bool livepatch_fix2_dummy_check(struct dummy *d, unsigned long jiffies)
{
int *shadow_count;
@@ -78,7 +78,7 @@ static void livepatch_fix2_dummy_leak_dtor(void *obj, void *shadow_data)
__func__, d, *shadow_leak);
}
void livepatch_fix2_dummy_free(struct dummy *d)
static void livepatch_fix2_dummy_free(struct dummy *d)
{
void **shadow_leak;
int *shadow_count;