diff options
author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2020-11-24 12:57:07 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-12-30 11:54:26 +0100 |
commit | 0c500d6a5c7a1e363652781e4dd03b7ec37f3c04 (patch) | |
tree | aee82044341a3ee36d61245535241dcecc2ee855 /drivers/dma-buf | |
parent | 224adad2c975ec706ba3c451ce8e10f1d3d9806d (diff) |
dma-buf/dma-resv: Respect num_fences when initializing the shared fence list.
commit bf8975837dac156c33a4d15d46602700998cb6dd upstream.
We hardcode the maximum number of shared fences to 4, instead of
respecting num_fences. Use a minimum of 4, but more if num_fences
is higher.
This seems to have been an oversight when first implementing the
api.
Fixes: 04a5faa8cbe5 ("reservation: update api and add some helpers")
Cc: <stable@vger.kernel.org> # v3.17+
Reported-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201124115707.406917-1-maarten.lankhorst@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma-buf')
-rw-r--r-- | drivers/dma-buf/dma-resv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 1c8f2581cb09..1187e5e80ede 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -200,7 +200,7 @@ int dma_resv_reserve_shared(struct dma_resv *obj, unsigned int num_fences) max = max(old->shared_count + num_fences, old->shared_max * 2); } else { - max = 4; + max = max(4ul, roundup_pow_of_two(num_fences)); } new = dma_resv_list_alloc(max); |