Commit e4dde412 authored by Daniel Borkmann's avatar Daniel Borkmann Committed by David S. Miller

net: fix compilation when busy poll is not enabled

MIN_NAPI_ID is used in various places outside of
CONFIG_NET_RX_BUSY_POLL wrapping, so when it's not set
we run into build errors such as:

  net/core/dev.c: In function 'dev_get_by_napi_id':
  net/core/dev.c:886:16: error: ‘MIN_NAPI_ID’ undeclared (first use in this function)
    if (napi_id < MIN_NAPI_ID)
                  ^~~~~~~~~~~

Thus, have MIN_NAPI_ID always defined to fix these errors.
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 54a6a043
...@@ -29,18 +29,18 @@ ...@@ -29,18 +29,18 @@
#include <linux/sched/signal.h> #include <linux/sched/signal.h>
#include <net/ip.h> #include <net/ip.h>
#ifdef CONFIG_NET_RX_BUSY_POLL
struct napi_struct;
extern unsigned int sysctl_net_busy_read __read_mostly;
extern unsigned int sysctl_net_busy_poll __read_mostly;
/* 0 - Reserved to indicate value not set /* 0 - Reserved to indicate value not set
* 1..NR_CPUS - Reserved for sender_cpu * 1..NR_CPUS - Reserved for sender_cpu
* NR_CPUS+1..~0 - Region available for NAPI IDs * NR_CPUS+1..~0 - Region available for NAPI IDs
*/ */
#define MIN_NAPI_ID ((unsigned int)(NR_CPUS + 1)) #define MIN_NAPI_ID ((unsigned int)(NR_CPUS + 1))
#ifdef CONFIG_NET_RX_BUSY_POLL
struct napi_struct;
extern unsigned int sysctl_net_busy_read __read_mostly;
extern unsigned int sysctl_net_busy_poll __read_mostly;
static inline bool net_busy_loop_on(void) static inline bool net_busy_loop_on(void)
{ {
return sysctl_net_busy_poll; return sysctl_net_busy_poll;
......
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