Commit 43aeaa29 authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Alasdair G Kergon

dm cache: fix arm link errors with inline

Use __always_inline to avoid a link failure with gcc 4.6 on ARM.
gcc 4.7 is OK.

It creates a function block_div.part.8, it references __udivdi3 and
__umoddi3 and it is never called. The references to __udivdi3 and
__umoddi3 cause a link failure.
Reported-by: default avatarRob Herring <robherring2@gmail.com>
Signed-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Signed-off-by: default avatarAlasdair G Kergon <agk@redhat.com>
parent 553d8fe0
...@@ -425,6 +425,10 @@ static bool block_size_is_power_of_two(struct cache *cache) ...@@ -425,6 +425,10 @@ static bool block_size_is_power_of_two(struct cache *cache)
return cache->sectors_per_block_shift >= 0; return cache->sectors_per_block_shift >= 0;
} }
/* gcc on ARM generates spurious references to __udivdi3 and __umoddi3 */
#if defined(CONFIG_ARM) && __GNUC__ == 4 && __GNUC_MINOR__ <= 6
__always_inline
#endif
static dm_block_t block_div(dm_block_t b, uint32_t n) static dm_block_t block_div(dm_block_t b, uint32_t n)
{ {
do_div(b, n); do_div(b, n);
......
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