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-rw-r--r--tests/i915/gem_tiled_wb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tests/i915/gem_tiled_wb.c b/tests/i915/gem_tiled_wb.c
index 67d54bd3..827c2d9d 100644
--- a/tests/i915/gem_tiled_wb.c
+++ b/tests/i915/gem_tiled_wb.c
@@ -174,8 +174,8 @@ igt_simple_main
len = size;
}
- first_page = offset & ~(PAGE_SIZE-1);
- last_page = (offset + len + PAGE_SIZE) & ~(PAGE_SIZE-1);
+ first_page = offset & -PAGE_SIZE;
+ last_page = (offset + len + PAGE_SIZE - 1) & -PAGE_SIZE;
offset -= first_page;
linear = gem_mmap__cpu(fd, handle, first_page, last_page - first_page, PROT_READ);