vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

acpi: Fix gcc9 error -Waddress-of-packed-member

Browse source 
Simply adds the missing packed attribute to 'struct grub_acpi_madt'.

[  233s] ../../grub-core/commands/lsacpi.c: In function 'disp_acpi_xsdt_table':
[  233s] ../../grub-core/commands/lsacpi.c:201:27: error: converting a packed 'struct grub_acpi_table_header' pointer (alignment 1) to a 'struct grub_acpi_madt' pointer (alignment 4) may result in an unaligned pointer value [-Werror=address-of-packed-member]
[  233s]   201 |  disp_madt_table ((struct grub_acpi_madt *) t);
[  233s]       |                           ^~~~~~~~~~~~~~
[  233s] In file included from ../../grub-core/commands/lsacpi.c:23:
[  233s] ../../include/grub/acpi.h:50:8: note: defined here
[  233s]    50 | struct grub_acpi_table_header
[  233s]       |        ^~~~~~~~~~~~~~~~~~~~~~
[  233s] ../../include/grub/acpi.h:90:8: note: defined here
[  233s]    90 | struct grub_acpi_madt
[  233s]       |        ^~~~~~~~~~~~~~
[  233s] ../../grub-core/commands/lsacpi.c: In function 'disp_acpi_rsdt_table':
[  233s] ../../grub-core/commands/lsacpi.c:225:27: error: converting a packed 'struct grub_acpi_table_header' pointer (alignment 1) to a 'struct grub_acpi_madt' pointer (alignment 4) may result in an unaligned pointer value [-Werror=address-of-packed-member]
[  233s]   225 |  disp_madt_table ((struct grub_acpi_madt *) t);
[  233s]       |                           ^~~~~~~~~~~~~~
[  233s] In file included from ../../grub-core/commands/lsacpi.c:23:
[  233s] ../../include/grub/acpi.h:50:8: note: defined here
[  233s]    50 | struct grub_acpi_table_header
[  233s]       |        ^~~~~~~~~~~~~~~~~~~~~~
[  233s] ../../include/grub/acpi.h:90:8: note: defined here
[  233s]    90 | struct grub_acpi_madt
[  233s]       |        ^~~~~~~~~~~~~~

Signed-off-by: Michael Chang <mchang@suse.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Michael Chang 2019-04-11 17:14:06 +08:00 committed by Daniel Kiper
parent 621024090b
commit 0b1bf3932f
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/grub/acpi.h
View file

@ -93,7 +93,7 @@ struct grub_acpi_madt
grub_uint32_t lapic_addr; grub_uint32_t lapic_addr;
grub_uint32_t flags; grub_uint32_t flags;
struct grub_acpi_madt_entry_header entries[0]; struct grub_acpi_madt_entry_header entries[0];
}; } GRUB_PACKED;
enum enum
{ {