qemu/include/hw/acpi
Philippe Mathieu-Daudé f7795e4096 misc: Replace zero-length arrays with flexible array member (automatic)
Description copied from Linux kernel commit from Gustavo A. R. Silva
(see [3]):

--v-- description start --v--

  The current codebase makes use of the zero-length array language
  extension to the C90 standard, but the preferred mechanism to
  declare variable-length types such as these ones is a flexible
  array member [1], introduced in C99:

  struct foo {
      int stuff;
      struct boo array[];
  };

  By making use of the mechanism above, we will get a compiler
  warning in case the flexible array does not occur last in the
  structure, which will help us prevent some kind of undefined
  behavior bugs from being unadvertenly introduced [2] to the
  Linux codebase from now on.

--^-- description end --^--

Do the similar housekeeping in the QEMU codebase (which uses
C99 since commit 7be41675f7).

All these instances of code were found with the help of the
following Coccinelle script:

  @@
  identifier s, m, a;
  type t, T;
  @@
   struct s {
      ...
      t m;
  -   T a[0];
  +   T a[];
  };
  @@
  identifier s, m, a;
  type t, T;
  @@
   struct s {
      ...
      t m;
  -   T a[0];
  +   T a[];
   } QEMU_PACKED;

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=76497732932f
[3] https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git/commit/?id=17642a2fbd2c1

Inspired-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-03-16 22:07:42 +01:00
..
acpi_dev_interface.h hw/arm: Use GED for system_powerdown event 2019-10-05 17:12:09 -04:00
acpi-defs.h misc: Replace zero-length arrays with flexible array member (automatic) 2020-03-16 22:07:42 +01:00
acpi.h Include hw/irq.h a lot less 2019-08-16 13:31:52 +02:00
aml-build.h acpi: Add i2c serial bus CRS handling 2019-09-20 14:08:10 -05:00
bios-linker-loader.h vmgenid: replace x-write-pointer-available hack 2017-09-08 16:15:17 +03:00
cpu_hotplug.h Clean up header guards that don't match their file name 2016-07-12 16:19:16 +02:00
cpu.h typo: apci->acpi 2019-01-30 10:16:58 +01:00
generic_event_device.h hw/arm: Use GED for system_powerdown event 2019-10-05 17:12:09 -04:00
ich9.h i386, acpi: check acpi_memory_hotplug capacity in pre_plug 2019-03-12 22:31:21 -04:00
ipmi.h ipmi: Fix SSIF ACPI handling to use the right CRS 2019-09-20 14:08:10 -05:00
memory_hotplug.h hw/acpi: Make ACPI IO address space configurable 2019-10-05 17:12:08 -04:00
pc-hotplug.h memhp: don't generate memory hotplug AML if it's not enabled/supported 2017-01-10 07:03:24 +02:00
pci.h include: Make headers more self-contained 2019-08-16 13:31:51 +02:00
pcihp.h pci/pcihp: perform unplug via the hotplug handler 2018-12-20 11:19:12 -05:00
tco.h Include migration/vmstate.h less 2019-08-16 13:31:52 +02:00
tpm.h acpi: build TPM Physical Presence interface 2019-01-17 21:10:57 -05:00
utils.h hw/acpi: extract acpi_add_rom_blob() 2019-06-16 16:16:52 -04:00
vmgenid.h Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00