1 程序中使用了列表，运行过程中报错： IndexError: list index out of range 这是由于列表的下标索...
* @src: Where to copy from * @count: The size of the area. * * You should not use this function to access IO space, use memcpy_toio() * or memcpy_fromio() instead.*/void*memcpy(void*dest,constvoid*src, size_t count) {char*tmp =dest;constchar*s =src;while(count--)*tmp++ ...
3 * @dest: Where to copy to 4 * @src: Where to copy from 5 * @count: The size of the area. 6 * 7 * You should not use this function to access IO space, use memcpy_toio() 8 * or memcpy_fromio() instead. 9 */ 10 void * memcpy(void * dest,const void *src,size_t co...
* @src: Where to copy from * @count: The size of the area. * * You should not use this function to access IO space, use memcpy_toio() * or memcpy_fromio() instead. */ void * memcpy(void *dest, const void *src, size_t count) { unsigned long *dl = (unsigned long *)dest,...
You should not use this function to access IO space, use memcpy_toio or memcpy_fromio instead. COPYRIGHT Index NAME SYNOPSIS ARGUMENTS DESCRIPTION COPYRIGHT
Instead, explicitly perfrom memcpy from the IO space for 8D-8D-8D ops by making sure no odd-length accesses are performed. Since this controller can be used on both arm and arm64 platforms, only 4-byte reads are used to make sure the same code works on both platforms. Signed-off-...
559 * or memcpy_fromio() instead. 560 */ 561 void *memcpy(void *dest, const void *src, size_t count) 562 { 563 char *tmp = dest; 564 const char *s = src; 565 566 while (count--) 567 *tmp++ = *s++; 568 return dest; ...
memcpy_fromio(dst->vaddr, src->vaddr_iomem, len); } else {2 changes: 1 addition & 1 deletion 2 drivers/gpu/drm/drm_fb_helper.c Original file line numberDiff line numberDiff line change @@ -385,7 +385,7 @@ static void drm_fb_helper_damage_blit_real(struct drm_fb_helper *fb_...
数量有指导意义。如下基于8K的内存快执行memcpy, 1个线程大约1S能够拷贝500M,如果服务器带宽或网卡到上限是1G,那么网络io的work thread 开2个即可,考虑到消息的解析损耗,3个线程足以抗住硬件的最高负载。 在我到测试机器上到测试结果是: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz ...
首先，内核不能信任任何用户空间的指针。必须对用户空间的指针指向的数据进行验证。如果只做验证不做拷贝...