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Re: [Xen-devel] [Qemu-devel] [PATCH 2/3] machine: Eliminate unnecessary stringify() usage



On Mon, Jan 7, 2019 at 11:32 PM Eduardo Habkost <ehabkost@xxxxxxxxxx> wrote:
>
> stringify() is useful when we need to use macros in compat_props
> (like when we set virtio-baloon-pci.class=PCI_CLASS_MEMORY_RAM at
> pc_i440fx_1_0_machine_options()), but it is pointless when we are
> already providing a number literal.
>
> Replace stringify() with string literals when appropriate.
>
> Signed-off-by: Eduardo Habkost <ehabkost@xxxxxxxxxx>

Reviewed-by: Marc-André Lureau <marcandre.lureau@xxxxxxxxxx>

> ---
>  hw/core/machine.c |  8 ++--
>  hw/i386/pc.c      | 94 +++++++++++++++++++++++------------------------
>  hw/i386/pc_piix.c | 30 +++++++--------
>  hw/ppc/spapr.c    |  2 +-
>  4 files changed, 67 insertions(+), 67 deletions(-)
>
> diff --git a/hw/core/machine.c b/hw/core/machine.c
> index f8563efb86..4b4d6c23de 100644
> --- a/hw/core/machine.c
> +++ b/hw/core/machine.c
> @@ -135,11 +135,11 @@ GlobalProperty hw_compat_2_8[] = {
>      {
>          .driver   = "fw_cfg_mem",
>          .property = "x-file-slots",
> -        .value    = stringify(0x10),
> +        .value    = "0x10",
>      },{
>          .driver   = "fw_cfg_io",
>          .property = "x-file-slots",
> -        .value    = stringify(0x10),
> +        .value    = "0x10",
>      },{
>          .driver   = "pflash_cfi01",
>          .property = "old-multiple-chip-handling",
> @@ -337,11 +337,11 @@ GlobalProperty hw_compat_2_1[] = {
>      },{
>          .driver   = "usb-mouse",
>          .property = "usb_version",
> -        .value    = stringify(1),
> +        .value    = "1",
>      },{
>          .driver   = "usb-kbd",
>          .property = "usb_version",
> -        .value    = stringify(1),
> +        .value    = "1",
>      },{
>          .driver   = "virtio-pci",
>          .property = "virtio-pci-bus-master-bug-migration",
> diff --git a/hw/i386/pc.c b/hw/i386/pc.c
> index 4952feb476..ff14b6d4df 100644
> --- a/hw/i386/pc.c
> +++ b/hw/i386/pc.c
> @@ -148,11 +148,11 @@ GlobalProperty pc_compat_2_12[] = {
>      },{
>          .driver   = "EPYC-" TYPE_X86_CPU,
>          .property = "xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "EPYC-IBPB-" TYPE_X86_CPU,
>          .property = "xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },
>  };
>  const size_t pc_compat_2_12_len = G_N_ELEMENTS(pc_compat_2_12);
> @@ -191,7 +191,7 @@ GlobalProperty pc_compat_2_9[] = {
>      {
>          .driver   = "mch",
>          .property = "extended-tseg-mbytes",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>  };
>  const size_t pc_compat_2_9_len = G_N_ELEMENTS(pc_compat_2_9);
> @@ -365,75 +365,75 @@ GlobalProperty pc_compat_2_3[] = {
>      },{
>          .driver   = "qemu64" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(4),
> +        .value    = "4",
>      },{
>          .driver   = "kvm64" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(5),
> +        .value    = "5",
>      },{
>          .driver   = "pentium3" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "n270" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(5),
> +        .value    = "5",
>      },{
>          .driver   = "Conroe" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(4),
> +        .value    = "4",
>      },{
>          .driver   = "Penryn" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(4),
> +        .value    = "4",
>      },{
>          .driver   = "Nehalem" "-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(4),
> +        .value    = "4",
>      },{
>          .driver   = "n270" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Penryn" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Conroe" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Nehalem" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Westmere" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "SandyBridge" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "IvyBridge" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Haswell" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Haswell-noTSX" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Broadwell" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver   = "Broadwell-noTSX" "-" TYPE_X86_CPU,
>          .property = "min-xlevel",
> -        .value    = stringify(0x8000000a),
> +        .value    = "0x8000000a",
>      },{
>          .driver = TYPE_X86_CPU,
>          .property = "kvm-no-smi-migration",
> @@ -566,7 +566,7 @@ GlobalProperty pc_compat_2_0[] = {
>      {
>          .driver   = "apic",
>          .property = "version",
> -        .value    = stringify(0x11),
> +        .value    = "0x11",
>      },
>      {
>          .driver   = "nec-usb-xhci",
> @@ -581,17 +581,17 @@ GlobalProperty pc_compat_2_0[] = {
>      {
>          .driver   = "pci-serial",
>          .property = "prog_if",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>      {
>          .driver   = "pci-serial-2x",
>          .property = "prog_if",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>      {
>          .driver   = "pci-serial-4x",
>          .property = "prog_if",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>      {
>          .driver   = "virtio-net-pci",
> @@ -629,7 +629,7 @@ GlobalProperty pc_compat_1_7[] = {
>      {
>          .driver   = "hpet",
>          .property = HPET_INTCAP,
> -        .value    = stringify(4),
> +        .value    = "4",
>      },
>  };
>  const size_t pc_compat_1_7_len = G_N_ELEMENTS(pc_compat_1_7);
> @@ -643,19 +643,19 @@ GlobalProperty pc_compat_1_6[] = {
>      },{
>          .driver   = "qemu64-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "qemu32-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(3),
> +        .value    = "3",
>      },{
>          .driver   = "i440FX-pcihost",
>          .property = "short_root_bus",
> -        .value    = stringify(1),
> +        .value    = "1",
>      },{
>          .driver   = "q35-pcihost",
>          .property = "short_root_bus",
> -        .value    = stringify(1),
> +        .value    = "1",
>      },
>  };
>  const size_t pc_compat_1_6_len = G_N_ELEMENTS(pc_compat_1_6);
> @@ -665,27 +665,27 @@ GlobalProperty pc_compat_1_5[] = {
>      {
>          .driver   = "Conroe-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "Conroe-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "Penryn-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "Penryn-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "Nehalem-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "Nehalem-" TYPE_X86_CPU,
>          .property = "min-level",
> -        .value    = stringify(2),
> +        .value    = "2",
>      },{
>          .driver   = "virtio-net-pci",
>          .property = "any_layout",
> @@ -697,11 +697,11 @@ GlobalProperty pc_compat_1_5[] = {
>      },{
>          .driver   = "i440FX-pcihost",
>          .property = "short_root_bus",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "q35-pcihost",
>          .property = "short_root_bus",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>  };
>  const size_t pc_compat_1_5_len = G_N_ELEMENTS(pc_compat_1_5);
> @@ -711,36 +711,36 @@ GlobalProperty pc_compat_1_4[] = {
>      {
>          .driver   = "scsi-hd",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "scsi-cd",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "scsi-disk",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "ide-hd",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "ide-cd",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "ide-drive",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "virtio-blk-pci",
>          .property = "discard_granularity",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },{
>          .driver   = "virtio-serial-pci",
>          .property = "vectors",
>          /* DEV_NVECTORS_UNSPECIFIED as a uint32_t string */
> -        .value    = stringify(0xFFFFFFFF),
> +        .value    = "0xFFFFFFFF",
>      },{
>          .driver   = "virtio-net-pci",
>          .property = "ctrl_guest_offloads",
> @@ -768,7 +768,7 @@ GlobalProperty pc_compat_1_4[] = {
>      },{
>          .driver   = "486-" TYPE_X86_CPU,
>          .property = "model",
> -        .value    = stringify(0),
> +        .value    = "0",
>      },
>      {
>          .driver = "n270" "-" TYPE_X86_CPU,
> diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> index ed6984638e..fd20227af3 100644
> --- a/hw/i386/pc_piix.c
> +++ b/hw/i386/pc_piix.c
> @@ -697,7 +697,7 @@ static void pc_i440fx_1_3_machine_options(MachineClass *m)
>          {
>              .driver   = "usb-tablet",
>              .property = "usb_version",
> -            .value    = stringify(1),
> +            .value    = "1",
>          },{
>              .driver   = "virtio-net-pci",
>              .property = "ctrl_mac_addr",
> @@ -741,11 +741,11 @@ static void pc_i440fx_1_2_machine_options(MachineClass 
> *m)
>          },{
>              .driver   = "qxl",
>              .property = "revision",
> -            .value    = stringify(3),
> +            .value    = "3",
>          },{
>              .driver   = "qxl-vga",
>              .property = "revision",
> -            .value    = stringify(3),
> +            .value    = "3",
>          },{
>              .driver   = "VGA",
>              .property = "mmio",
> @@ -777,19 +777,19 @@ static void pc_i440fx_1_1_machine_options(MachineClass 
> *m)
>          },{
>              .driver   = "VGA",
>              .property = "vgamem_mb",
> -            .value    = stringify(8),
> +            .value    = "8",
>          },{
>              .driver   = "vmware-svga",
>              .property = "vgamem_mb",
> -            .value    = stringify(8),
> +            .value    = "8",
>          },{
>              .driver   = "qxl-vga",
>              .property = "vgamem_mb",
> -            .value    = stringify(8),
> +            .value    = "8",
>          },{
>              .driver   = "qxl",
>              .property = "vgamem_mb",
> -            .value    = stringify(8),
> +            .value    = "8",
>          },{
>              .driver   = "virtio-blk-pci",
>              .property = "config-wce",
> @@ -876,11 +876,11 @@ static void pc_i440fx_0_14_machine_options(MachineClass 
> *m)
>          },{
>              .driver   = "qxl",
>              .property = "revision",
> -            .value    = stringify(2),
> +            .value    = "2",
>          },{
>              .driver   = "qxl-vga",
>              .property = "revision",
> -            .value    = stringify(2),
> +            .value    = "2",
>          },
>      };
>
> @@ -904,19 +904,19 @@ static void pc_i440fx_0_13_machine_options(MachineClass 
> *m)
>          },{
>              .driver   = "AC97",
>              .property = "use_broken_id",
> -            .value    = stringify(1),
> +            .value    = "1",
>          },{
>              .driver   = "virtio-9p-pci",
>              .property = "vectors",
> -            .value    = stringify(0),
> +            .value    = "0",
>          },{
>              .driver   = "VGA",
>              .property = "rombar",
> -            .value    = stringify(0),
> +            .value    = "0",
>          },{
>              .driver   = "vmware-svga",
>              .property = "rombar",
> -            .value    = stringify(0),
> +            .value    = "0",
>          },
>      };
>
> @@ -936,11 +936,11 @@ static void pc_i440fx_0_12_machine_options(MachineClass 
> *m)
>          {
>              .driver   = "virtio-serial-pci",
>              .property = "max_ports",
> -            .value    = stringify(1),
> +            .value    = "1",
>          },{
>              .driver   = "virtio-serial-pci",
>              .property = "vectors",
> -            .value    = stringify(0),
> +            .value    = "0",
>          },{
>              .driver   = "usb-mouse",
>              .property = "serial",
> diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
> index bff42f0adb..d7d87b0ae8 100644
> --- a/hw/ppc/spapr.c
> +++ b/hw/ppc/spapr.c
> @@ -4264,7 +4264,7 @@ static void 
> spapr_machine_2_6_class_options(MachineClass *mc)
>          {
>              .driver   = TYPE_SPAPR_PCI_HOST_BRIDGE,
>              .property = "ddw",
> -            .value    = stringify(off),
> +            .value    = "off",
>          },
>      };
>
> --
> 2.18.0.rc1.1.g3f1ff2140
>
>


-- 
Marc-André Lureau

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