| Message ID | 1449242787-16598-9-git-send-email-mmarek@suse.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
From: Michal Marek > Sent: 04 December 2015 15:26 > Otherwise make tags can't parse them: > > ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1" ... Seems to me you need to fix ctags. David -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 2015-12-07 17:33, David Laight wrote: > From: Michal Marek >> Sent: 04 December 2015 15:26 >> Otherwise make tags can't parse them: >> >> ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1" > ... > > Seems to me you need to fix ctags. I'm sure the maintainers of ctags and etags would accept patches to describe a custom context-free grammar via commandline options, but until then, let's continue using the regular expressions in tags.sh and remove newlines in macros that tags.sh is trying to expand. Michal -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Mon, 2015-12-07 at 17:53 +0100, Michal Marek wrote: > On 2015-12-07 17:33, David Laight wrote: > > From: Michal Marek > > > Sent: 04 December 2015 15:26 > > > Otherwise make tags can't parse them: > > > > > > ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1" > > ... > > > > Seems to me you need to fix ctags. > > I'm sure the maintainers of ctags and etags would accept patches to > describe a custom context-free grammar via commandline options, but > until then, let's continue using the regular expressions in tags.sh and > remove newlines in macros that tags.sh is trying to expand. > Do you have a list of the most common macros? Perhaps it'd be good to add exceptions to checkpatch 80 column line rules for them. -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 2015-12-07 18:04, Joe Perches wrote: > On Mon, 2015-12-07 at 17:53 +0100, Michal Marek wrote: >> On 2015-12-07 17:33, David Laight wrote: >>> From: Michal Marek >>>> Sent: 04 December 2015 15:26 >>>> Otherwise make tags can't parse them: >>>> >>>> ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1" >>> ... >>> >>> Seems to me you need to fix ctags. >> >> I'm sure the maintainers of ctags and etags would accept patches to >> describe a custom context-free grammar via commandline options, but >> until then, let's continue using the regular expressions in tags.sh and >> remove newlines in macros that tags.sh is trying to expand. >> > > Do you have a list of the most common macros? In practice, it's only DEFINE_PER_CPU and its sibling DEFINE_PER_CPU_SHARED_ALIGNED, where we try to pick the second argument to the macro and the first argument can be lengthy. > Perhaps it'd be good to add exceptions to checkpatch > 80 column line rules for them. Your call. But this is a fairly rare occurrence -- 10 cases so far. Michal -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c index 7f706d4f84f7..1dcfe29d8a42 100644 --- a/arch/ia64/kernel/smp.c +++ b/arch/ia64/kernel/smp.c @@ -57,8 +57,7 @@ static struct local_tlb_flush_counts { unsigned int count; } __attribute__((__aligned__(32))) local_tlb_flush_counts[NR_CPUS]; -static DEFINE_PER_CPU_SHARED_ALIGNED(unsigned short [NR_CPUS], - shadow_flush_counts); +static DEFINE_PER_CPU_SHARED_ALIGNED(unsigned short [NR_CPUS], shadow_flush_counts); #define IPI_CALL_FUNC 0 #define IPI_CPU_STOP 1 diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 175c86bee3a9..16ca18547370 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -61,8 +61,7 @@ module_param(latency_factor, uint, 0644); static DEFINE_PER_CPU(struct cpuidle_device *, acpi_cpuidle_device); -static DEFINE_PER_CPU(struct acpi_processor_cx * [CPUIDLE_STATE_MAX], - acpi_cstate); +static DEFINE_PER_CPU(struct acpi_processor_cx * [CPUIDLE_STATE_MAX], acpi_cstate); static int disabled_by_idle_boot_param(void) { diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c index 7dd46312c180..7ffed4c62434 100644 --- a/drivers/xen/events/events_2l.c +++ b/drivers/xen/events/events_2l.c @@ -38,8 +38,7 @@ /* Find the first set bit in a evtchn mask */ #define EVTCHN_FIRST_BIT(w) find_first_bit(BM(&(w)), BITS_PER_EVTCHN_WORD) -static DEFINE_PER_CPU(xen_ulong_t [EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD], - cpu_evtchn_mask); +static DEFINE_PER_CPU(xen_ulong_t [EVTCHN_2L_NR_CHANNELS/BITS_PER_EVTCHN_WORD], cpu_evtchn_mask); static unsigned evtchn_2l_max_channels(void) { diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c index 60ace56618f6..96e5300fdf4b 100644 --- a/kernel/locking/lockdep.c +++ b/kernel/locking/lockdep.c @@ -150,8 +150,7 @@ static inline struct lock_class *hlock_class(struct held_lock *hlock) } #ifdef CONFIG_LOCK_STAT -static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS], - cpu_lock_stats); +static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS], cpu_lock_stats); static inline u64 lockstat_clock(void) { diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index adbb194e2b5d..3504c6e5b641 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -130,10 +130,8 @@ static struct rcu_torture __rcu *rcu_torture_current; static unsigned long rcu_torture_current_version; static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN]; static DEFINE_SPINLOCK(rcu_torture_lock); -static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], - rcu_torture_count) = { 0 }; -static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], - rcu_torture_batch) = { 0 }; +static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) = { 0 }; +static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) = { 0 }; static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1]; static atomic_t n_rcu_torture_alloc; static atomic_t n_rcu_torture_alloc_fail; diff --git a/kernel/workqueue.c b/kernel/workqueue.c index c579dbab2e36..4111c5b9ba0c 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -302,8 +302,7 @@ static bool workqueue_freezing; /* PL: have wqs started freezing? */ static cpumask_var_t wq_unbound_cpumask; /* PL: low level cpumask for all unbound wqs */ /* the per-cpu worker pools */ -static DEFINE_PER_CPU_SHARED_ALIGNED(struct worker_pool [NR_STD_WORKER_POOLS], - cpu_worker_pools); +static DEFINE_PER_CPU_SHARED_ALIGNED(struct worker_pool [NR_STD_WORKER_POOLS], cpu_worker_pools); static DEFINE_IDR(worker_pool_idr); /* PR: idr of all pools */ diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c index 4cbe9f0a4281..45f0ef03c388 100644 --- a/net/ipv4/syncookies.c +++ b/net/ipv4/syncookies.c @@ -50,8 +50,7 @@ static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS] __read_mostly; #define TSBITS 6 #define TSMASK (((__u32)1 << TSBITS) - 1) -static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], - ipv4_cookie_scratch); +static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], ipv4_cookie_scratch); static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport, u32 count, int c) diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c index bb8f2fa1c7fb..68591b8d301e 100644 --- a/net/ipv6/syncookies.c +++ b/net/ipv6/syncookies.c @@ -41,8 +41,7 @@ static __u16 const msstab[] = { 9000 - 60, }; -static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], - ipv6_cookie_scratch); +static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS], ipv6_cookie_scratch); static u32 cookie_hash(const struct in6_addr *saddr, const struct in6_addr *daddr, __be16 sport, __be16 dport, u32 count, int c) diff --git a/net/rds/page.c b/net/rds/page.c index 9005a2c920ee..6bfb9a59ea55 100644 --- a/net/rds/page.c +++ b/net/rds/page.c @@ -42,8 +42,7 @@ struct rds_page_remainder { unsigned long r_offset; }; -static DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_page_remainder, - rds_page_remainders); +static DEFINE_PER_CPU_SHARED_ALIGNED(struct rds_page_remainder, rds_page_remainders); /* * returns 0 on success or -errno on failure.
Otherwise make tags can't parse them: ctags: Warning: arch/ia64/kernel/smp.c:60: null expansion of name pattern "\1" ctags: Warning: drivers/xen/events/events_2l.c:41: null expansion of name pattern "\1" ctags: Warning: drivers/acpi/processor_idle.c:64: null expansion of name pattern "\1" ctags: Warning: kernel/locking/lockdep.c:153: null expansion of name pattern "\1" ctags: Warning: kernel/workqueue.c:305: null expansion of name pattern "\1" ctags: Warning: kernel/rcu/rcutorture.c:133: null expansion of name pattern "\1" ctags: Warning: kernel/rcu/rcutorture.c:135: null expansion of name pattern "\1" ctags: Warning: net/rds/page.c:45: null expansion of name pattern "\1" ctags: Warning: net/ipv4/syncookies.c:53: null expansion of name pattern "\1" ctags: Warning: net/ipv6/syncookies.c:44: null expansion of name pattern "\1" Cc: linux-ia64@vger.kernel.org Cc: xen-devel@lists.xenproject.org Cc: linux-acpi@vger.kernel.org Cc: rds-devel@oss.oracle.com Cc: netdev@vger.kernel.org Signed-off-by: Michal Marek <mmarek@suse.com> --- v2: No change arch/ia64/kernel/smp.c | 3 +-- drivers/acpi/processor_idle.c | 3 +-- drivers/xen/events/events_2l.c | 3 +-- kernel/locking/lockdep.c | 3 +-- kernel/rcu/rcutorture.c | 6 ++---- kernel/workqueue.c | 3 +-- net/ipv4/syncookies.c | 3 +-- net/ipv6/syncookies.c | 3 +-- net/rds/page.c | 3 +-- 9 files changed, 10 insertions(+), 20 deletions(-)