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| author | Kees Cook <kees@outflux.net> | 2023-04-05 15:51:25 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-04-06 20:29:12 +0200 |
| commit | 2a5ab99847bd41ad5f0461f519d0825f163874a6 (patch) | |
| tree | f58285c7713e6abb54a242bf1e9887372ad6f105 /drivers/acpi | |
| parent | ACPICA: actbl2: Replace 1-element arrays with flexible arrays (diff) | |
| download | linux-2a5ab99847bd41ad5f0461f519d0825f163874a6.tar.xz linux-2a5ab99847bd41ad5f0461f519d0825f163874a6.zip | |
ACPICA: struct acpi_nfit_interleave: Replace 1-element array with flexible array
ACPICA commit e66decc6fca36b59194b0947d87d6a9bec078bc3
Similar to "Replace one-element array with flexible-array", replace the
1-element array with a proper flexible array member as defined by C99.
This allows the code to operate without tripping compile-time and run-
time bounds checkers (e.g. via __builtin_object_size(), -fsanitize=bounds,
and/or -fstrict-flex-arrays=3).
Unlike struct acpi_nfit_flush_address and struct acpi_nfit_smbios, which
had their sizeof() uses adjusted in code, struct acpi_nfit_interleave did
not. This appears to have been a bug. After this change, there is a binary
difference in acpi_dm_dump_nfit() since the size of the structure now has
the correct size, as the prior result was including the trailing U32:
- mov $0x14,%ebp
+ mov $0x10,%ebp
Link: https://github.com/acpica/acpica/commit/e66decc6
Signed-off-by: Bob Moore <robert.moore@intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/nfit/core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index 85d9d67e38a4..07204d482968 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -3476,7 +3476,7 @@ static __init int nfit_init(void) BUILD_BUG_ON(sizeof(struct acpi_table_nfit) != 40); BUILD_BUG_ON(sizeof(struct acpi_nfit_system_address) != 64); BUILD_BUG_ON(sizeof(struct acpi_nfit_memory_map) != 48); - BUILD_BUG_ON(sizeof(struct acpi_nfit_interleave) != 20); + BUILD_BUG_ON(sizeof(struct acpi_nfit_interleave) != 16); BUILD_BUG_ON(sizeof(struct acpi_nfit_smbios) != 8); BUILD_BUG_ON(sizeof(struct acpi_nfit_control_region) != 80); BUILD_BUG_ON(sizeof(struct acpi_nfit_data_region) != 40); |