Re: [PATCH] hw/riscv/riscv-iommu-sys.c: fix duplicated 'table_size'

[Alistair Francis]

On Mon, Dec 23, 2024 at 7:46 AM Daniel Henrique Barboza
<dbarboza@ventanamicro.com> wrote:
>
> Trivial fix for the following ticket:
>
> CID 1568580:  Incorrect expression  (EVALUATION_ORDER)
> In "table_size = table_size = n_vectors * 16U",
>     "table_size" is written twice with the same value.
>
> Cc: qemu-trivial@nongnu.org
> Cc: Peter Maydell <peter.maydell@linaro.org>
> Resolves: Coverity CID 1568580
> Fixes: 01c1caa9d1 ("hw/riscv/virt.c, riscv-iommu-sys.c: add MSIx support")
> Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/riscv/riscv-iommu-sys.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/riscv/riscv-iommu-sys.c b/hw/riscv/riscv-iommu-sys.c
> index 28153f38da..65b24fb07d 100644
> --- a/hw/riscv/riscv-iommu-sys.c
> +++ b/hw/riscv/riscv-iommu-sys.c
> @@ -121,7 +121,7 @@ static void 
> riscv_iommu_sysdev_init_msi(RISCVIOMMUStateSys *s,
>                                          uint32_t n_vectors)
>  {
>      RISCVIOMMUState *iommu = &s->iommu;
> -    uint32_t table_size = table_size = n_vectors * PCI_MSIX_ENTRY_SIZE;
> +    uint32_t table_size = n_vectors * PCI_MSIX_ENTRY_SIZE;
>      uint32_t table_offset = RISCV_IOMMU_REG_MSI_CONFIG;
>      uint32_t pba_size = QEMU_ALIGN_UP(n_vectors, 64) / 8;
>      uint32_t pba_offset = RISCV_IOMMU_REG_MSI_CONFIG + 256;
> --
> 2.47.1
>
>