#include #include #include #include #include #include #include #include #include "irq.h" #include "str.h" #include "die.h" int device_irq_number(const char *ifname) { int irq = 0; char buff[128], sysname[128]; FILE *fp; if (!strncmp("lo", ifname, strlen("lo"))) return 0; slprintf(sysname, sizeof(sysname), "/sys/class/net/%s/device/irq", ifname); fp = fopen(sysname, "r"); if (!fp) return -ENOENT; memset(buff, 0, sizeof(buff)); if (fgets(buff, sizeof(buff), fp) != NULL) { buff[sizeof(buff) - 1] = 0; irq = atoi(buff); } fclose(fp); return irq; } static char nic_irq_affinity_list[128]; static bool nic_irq_stored = false; static int nic_irq = -1; static void device_save_irq_affinity_list(void) { int ret, fd; char file[128]; bug_on(nic_irq_stored); slprintf(file, sizeof(file), "/proc/irq/%d/smp_affinity_list", nic_irq); fd = open(file, O_RDONLY); if (fd < 0) return; memset(nic_irq_affinity_list, 0, sizeof(nic_irq_affinity_list)); ret = read(fd, nic_irq_affinity_list, sizeof(nic_irq_affinity_list)); if (ret < 0) panic("Cannot store NIC IRQ affinity!\n"); close(fd); nic_irq_stored = true; } void device_restore_irq_affinity_list(void) { int ret, fd; char file[128]; if (!nic_irq_stored) return; bug_on(nic_irq == -1); slprintf(file, sizeof(file), "/proc/irq/%d/smp_affinity_list", nic_irq); fd = open(file, O_WRONLY); if (fd < 0) return; ret = write(fd, nic_irq_affinity_list, sizeof(nic_irq_affinity_list)); if (ret < 0) panic("Cannot restore NIC IRQ affinity!\n"); close(fd); } int device_set_irq_affinity_list(int irq, unsigned long from, unsigned long to) { int ret, fd; char file[128], list[64]; if (unlikely(irq == 0)) return 0; if (!nic_irq_stored) { nic_irq = irq; device_save_irq_affinity_list(); } slprintf(file, sizeof(file), "/proc/irq/%d/smp_affinity_list", irq); slprintf(list, sizeof(list), "%lu-%lu\n", from, to); fd = open(file, O_WRONLY); if (fd < 0) return -ENOENT; ret = write(fd, list, strlen(list)); close(fd); return ret; } int device_set_irq_affinity(int irq, unsigned long cpu) { return device_set_irq_affinity_list(irq, cpu, cpu); } n>
path: root/sound/isa/sb/sb8.c
ove&id=2c5d9555d6d937966d79d4c6529a5f7b9206e405'>drivers/usb/host/Makefile
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 10:56:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-29 10:56:56 -0800
commit2c5d9555d6d937966d79d4c6529a5f7b9206e405 (patch)
tree4f3d220ea3aeaadcae0796c5456e0ef9a908071d /drivers/usb/host/Makefile
parent53cd1ad1a68fd10f677445e04ed63aa9ce39b36b (diff)
parent2ad5d52d42810bed95100a3d912679d8864421ec (diff)
Merge branch 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull two parisc fixes from Helge Deller: "One fix to avoid usage of BITS_PER_LONG in user-space exported swab.h header which breaks compiling qemu, and one trivial fix for printk continuation in the parisc parport driver" * 'parisc-4.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Don't use BITS_PER_LONG in userspace-exported swab.h header parisc, parport_gsc: Fixes for printk continuation lines
Diffstat (limited to 'drivers/usb/host/Makefile')