On Tue, Mar 5, 2024, at 20:22, Mina Almasry wrote:
> On Tue, Mar 5, 2024 at 12:42 AM Arnd Bergmann wrote:
>> On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
>>
>> This structure requires a special compat handler to run
>> x86-32 binaries on x86-64 because of the different alignment
>>
On Tue, Mar 5, 2024 at 12:42 AM Arnd Bergmann wrote:
>
> On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
> > --- a/arch/alpha/include/uapi/asm/socket.h
> > +++ b/arch/alpha/include/uapi/asm/socket.h
> > #define SO_PEERPIDFD 77
> > +#define SO_DEVMEM_LINEAR 79
> > +#define
On Tue, Mar 5, 2024, at 03:01, Mina Almasry wrote:
> --- a/arch/alpha/include/uapi/asm/socket.h
> +++ b/arch/alpha/include/uapi/asm/socket.h
> #define SO_PEERPIDFD 77
> +#define SO_DEVMEM_LINEAR 79
> +#define SO_DEVMEM_DMABUF 80
> --- a/arch/mips/include/uapi/asm/socket.h
> +++
In tcp_recvmsg_locked(), detect if the skb being received by the user
is a devmem skb. In this case - if the user provided the MSG_SOCK_DEVMEM
flag - pass it to tcp_recvmsg_devmem() for custom handling.
tcp_recvmsg_devmem() copies any data in the skb header to the linear
buffer, and returns a
