On 27/05/2019 10:46, Chris Wilson wrote:
We can use offsetof for the same effect, much tidier with no dummy
locals.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
---
benchmarks/gem_wsim.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)
diff --git a/benchmarks/gem_wsim.c b/benchmarks/gem_wsim.c
index db19925b1..a76fdbfe2 100644
--- a/benchmarks/gem_wsim.c
+++ b/benchmarks/gem_wsim.c
@@ -1443,23 +1443,20 @@ set_ctx_sseu(struct ctx *ctx, uint64_t slice_mask)
static size_t sizeof_load_balance(int count)
{
- struct i915_context_engines_load_balance *ptr;
-
- return sizeof(*ptr) + count * sizeof(ptr->engines[0]);
+ return offsetof(struct i915_context_engines_load_balance,
+ engines[count]);
}
static size_t sizeof_param_engines(int count)
{
- struct i915_context_param_engines *ptr;
-
- return sizeof(*ptr) + count * sizeof(ptr->engines[0]);
+ return offsetof(struct i915_context_param_engines,
+ engines[count]);
}
static size_t sizeof_engines_bond(int count)
{
- struct i915_context_engines_bond *ptr;
-
- return sizeof(*ptr) + count * sizeof(ptr->engines[0]);
+ return offsetof(struct i915_context_engines_bond,
+ engines[count]);
}
#define alloca0(sz) ({ size_t sz__ = (sz); memset(alloca(sz__), 0, sz__); })
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Regards,
Tvrtko
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