diff options
| author | Byungchul Park <byungchul@sk.com> | 2025-07-02 14:32:55 +0900 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-07 18:40:10 -0700 |
| commit | 4369d40da2f28ae1d3caadd4eb5d7b7f49a3776f (patch) | |
| tree | f0609367a09735739522c10ef2a349684ee97140 | |
| parent | b56ce86846225d6bc96ca9428ad945b4d86b96d5 (diff) | |
netmem: use _Generic to cover const casting for page_to_netmem()
The current page_to_netmem() doesn't cover const casting resulting in
trying to cast const struct page * to const netmem_ref fails.
To cover the case, change page_to_netmem() to use macro and _Generic.
Signed-off-by: Byungchul Park <byungchul@sk.com>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/20250702053256.4594-5-byungchul@sk.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | include/net/netmem.h | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/include/net/netmem.h b/include/net/netmem.h index 7a1dafa3f080..de1d95f04076 100644 --- a/include/net/netmem.h +++ b/include/net/netmem.h @@ -139,10 +139,9 @@ static inline netmem_ref net_iov_to_netmem(struct net_iov *niov) return (__force netmem_ref)((unsigned long)niov | NET_IOV); } -static inline netmem_ref page_to_netmem(const struct page *page) -{ - return (__force netmem_ref)page; -} +#define page_to_netmem(p) (_Generic((p), \ + const struct page * : (__force const netmem_ref)(p), \ + struct page * : (__force netmem_ref)(p))) /** * virt_to_netmem - convert virtual memory pointer to a netmem reference |