nathanchance wrote:
Is it expected that this warns for C code? I only see `cxx` in this change but
I see a new instance of this warning in my Linux kernel builds:
```
drivers/net/ethernet/netronome/nfp/nfdk/rings.c:60:18: warning: first argument
in call to '__builtin_memset' is a pointer to non-trivially copyable type
'struct nfp_nfd3_tx_desc' [-Wnontrivial-memaccess]
60 | memset(tx_ring->txds, 0, tx_ring->size);
| ^
drivers/net/ethernet/netronome/nfp/nfdk/rings.c:60:18: note: explicitly cast
the pointer to silence this warning
60 | memset(tx_ring->txds, 0, tx_ring->size);
| ^
| (void*)
include/linux/fortify-string.h:512:46: note: expanded from macro 'memset'
512 | #define memset(p, c, s) __fortify_memset_chk(p, c, s,
\
| ^
include/linux/fortify-string.h:504:22: note: expanded from macro
'__fortify_memset_chk'
504 | __underlying_memset(p, c, __fortify_size);
\
| ^
1 warning generated.
```
https://elixir.bootlin.com/linux/v6.11.5/source/drivers/net/ethernet/netronome/nfp/nfdk/rings.c#L60
https://github.com/llvm/llvm-project/pull/111434
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