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| author | Ben Hutchings <ben@decadent.org.uk> | 2020-05-23 18:50:34 +0300 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-05-24 10:15:54 +0300 |
| commit | f39293fd37fff74c531b7a52d0459cc77db85e7f (patch) | |
| tree | ca9ec10db63c1f3685d7ff21d68b4b66e17caed6 /arch/mips/loongson64 | |
| parent | 21e1a03e1dbed20e03d88aa077163cd6ceaa128f (diff) | |
| download | linux-f39293fd37fff74c531b7a52d0459cc77db85e7f.tar.xz | |
MIPS: Fix exception handler memcpy()
The exception handler subroutines are declared as a single char, but
when copied to the required addresses the copy length is 0x80.
When range checks are enabled for memcpy() this results in a build
failure, with error messages such as:
In file included from arch/mips/mti-malta/malta-init.c:15:
In function 'memcpy',
inlined from 'mips_nmi_setup' at arch/mips/mti-malta/malta-init.c:98:2:
include/linux/string.h:376:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter
376 | __read_overflow2();
| ^~~~~~~~~~~~~~~~~~
Change the declarations to use type char[].
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: YunQiang Su <syq@debian.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Diffstat (limited to 'arch/mips/loongson64')
| -rw-r--r-- | arch/mips/loongson64/init.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index 2b45ca6ca98d..23eeb85b1abf 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -22,10 +22,10 @@ u32 node_id_offset; static void __init mips_nmi_setup(void) { void *base; - extern char except_vec_nmi; + extern char except_vec_nmi[]; base = (void *)(CAC_BASE + 0x380); - memcpy(base, &except_vec_nmi, 0x80); + memcpy(base, except_vec_nmi, 0x80); flush_icache_range((unsigned long)base, (unsigned long)base + 0x80); } |