| Server IP : 79.136.114.73 / Your IP : 216.73.216.55 Web Server : Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.29 OpenSSL/1.0.1f System : Linux b8009 3.13.0-170-generic #220-Ubuntu SMP Thu May 9 12:40:49 UTC 2019 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /lib/modules/3.13.0-170-generic/build/arch/cris/include/arch-v32/arch/ |
Upload File : |
#ifndef _ASM_CRIS_ARCH_CHECKSUM_H
#define _ASM_CRIS_ARCH_CHECKSUM_H
/*
* Check values used in TCP/UDP headers.
*
* The gain of doing this in assembler instead of C, is that C doesn't
* generate carry-additions for the 32-bit components of the
* checksum. Which means it would be necessary to split all those into
* 16-bit components and then add.
*/
static inline __wsum
csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
unsigned short len, unsigned short proto, __wsum sum)
{
__wsum res;
__asm__ __volatile__ ("add.d %2, %0\n\t"
"addc %3, %0\n\t"
"addc %4, %0\n\t"
"addc 0, %0\n\t"
: "=r" (res)
: "0" (sum), "r" (daddr), "r" (saddr), \
"r" ((len + proto) << 8));
return res;
}
#endif /* _ASM_CRIS_ARCH_CHECKSUM_H */