From: Arnd Bergmann <a...@arndb.de>
gcc -Wstringop-truncation warns about copying a string that results in a
missing nul termination:
drivers/acpi/acpica/tbfind.c: In function 'acpi_tb_find_table':
drivers/acpi/acpica/tbfind.c:60:9: error: 'strncpy' specified bound 6 equals
destination size [-Werror=stringop-truncation]
60 | strncpy(header.oem_id, oem_id, ACPI_OEM_ID_SIZE);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/acpi/acpica/tbfind.c:61:9: error: 'strncpy' specified bound 8 equals
destination size [-Werror=stringop-truncation]
61 | strncpy(header.oem_table_id, oem_table_id,
ACPI_OEM_TABLE_ID_SIZE);
|
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The code works as intended, and the warning could be addressed by using
a memcpy(), but turning the warning off for this file works equally well
and may be easir to merge.
Fixes: 47c08729bf1c ("ACPICA: Fix for LoadTable operator, input strings")
Link:
https://lore.kernel.org/lkml/cajz5v0houfv54kw7y4223mn9e7d4xvr7whrfnltbqczmuxt...@mail.gmail.com/#t
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
drivers/acpi/acpica/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 30f3fc13c29d..8d18af396de9 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -5,6 +5,7 @@
ccflags-y := -D_LINUX -DBUILDING_ACPICA
ccflags-$(CONFIG_ACPI_DEBUG) += -DACPI_DEBUG_OUTPUT
+CFLAGS_tbfind.o += $(call cc-disable-warning,
stringop-truncation)
# use acpi.o to put all files here into acpi.o modparam namespace
obj-y += acpi.o
--
2.39.2
