diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/sysdev/msi_bitmap.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c index 0c75214b6f92..8155d93dee1d 100644 --- a/arch/powerpc/sysdev/msi_bitmap.c +++ b/arch/powerpc/sysdev/msi_bitmap.c @@ -151,7 +151,7 @@ void msi_bitmap_free(struct msi_bitmap *bmp) static void __init test_basics(void) { struct msi_bitmap bmp; - int i, size = 512; + int rc, i, size = 512; /* Can't allocate a bitmap of 0 irqs */ check(msi_bitmap_alloc(&bmp, 0, NULL) != 0); @@ -185,14 +185,24 @@ static void __init test_basics(void) msi_bitmap_free_hwirqs(&bmp, size / 2, 1); check(msi_bitmap_alloc_hwirqs(&bmp, 1) == size / 2); + /* Free most of them for the alignment tests */ + msi_bitmap_free_hwirqs(&bmp, 3, size - 3); + /* Check we get a naturally aligned offset */ - check(msi_bitmap_alloc_hwirqs(&bmp, 2) % 2 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 4) % 4 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 8) % 8 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 9) % 16 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 3) % 4 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 7) % 8 == 0); - check(msi_bitmap_alloc_hwirqs(&bmp, 121) % 128 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 2); + check(rc >= 0 && rc % 2 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 4); + check(rc >= 0 && rc % 4 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 8); + check(rc >= 0 && rc % 8 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 9); + check(rc >= 0 && rc % 16 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 3); + check(rc >= 0 && rc % 4 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 7); + check(rc >= 0 && rc % 8 == 0); + rc = msi_bitmap_alloc_hwirqs(&bmp, 121); + check(rc >= 0 && rc % 128 == 0); msi_bitmap_free(&bmp); |