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| author | Blue Swirl <blauwirbel@gmail.com> | 2011-08-07 19:03:18 +0000 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2011-08-21 19:52:29 +0000 |
| commit | 97bbb109b1349051390f6b2ad77b1bfb44e3d760 (patch) | |
| tree | d967018271fc224d84988d2e603741555e91e72e | |
| parent | f90074f49309de9dd65b978a95d10f089017960a (diff) | |
| download | qemu-97bbb109b1349051390f6b2ad77b1bfb44e3d760.tar.gz | |
slavio_misc: avoid structure holes spotted by pahole
Report from pahole on amd64 host:
struct MiscState {
SysBusDevice busdev; /* 0 5648 */
/* --- cacheline 88 boundary (5632 bytes) was 16 bytes ago --- */
qemu_irq irq; /* 5648 8 */
uint32_t dummy; /* 5656 4 */
uint8_t config; /* 5660 1 */
uint8_t aux1; /* 5661 1 */
uint8_t aux2; /* 5662 1 */
uint8_t diag; /* 5663 1 */
uint8_t mctrl; /* 5664 1 */
uint8_t sysctrl; /* 5665 1 */
uint16_t leds; /* 5666 2 */
/* XXX 4 bytes hole, try to pack */
qemu_irq fdc_tc; /* 5672 8 */
/* size: 5680, cachelines: 89 */
/* sum members: 5676, holes: 1, sum holes: 4 */
/* last cacheline: 48 bytes */
}; /* definitions: 1 */
Fix by rearranging the structure to avoid padding.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
| -rw-r--r-- | hw/slavio_misc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/slavio_misc.c b/hw/slavio_misc.c index 198360d573..1f5a2d7330 100644 --- a/hw/slavio_misc.c +++ b/hw/slavio_misc.c @@ -37,13 +37,13 @@ typedef struct MiscState { SysBusDevice busdev; qemu_irq irq; + qemu_irq fdc_tc; uint32_t dummy; uint8_t config; uint8_t aux1, aux2; uint8_t diag, mctrl; uint8_t sysctrl; uint16_t leds; - qemu_irq fdc_tc; } MiscState; typedef struct APCState { |