Jason A. Donenfeld
d92cff89a0
net_dbg_ratelimited: turn into no-op when !DEBUG ...
The pr_debug family of functions turns into a no-op when -DDEBUG is not
specified, opting instead to call "no_printk", which gets compiled to a
no-op (but retains gcc's nice warnings about printf-style arguments).
The problem with net_dbg_ratelimited is that it is defined to be a
variant of net_ratelimited_function, which expands to essentially:
if (net_ratelimit())
pr_debug(fmt, ...);
When DEBUG is not defined, then this becomes,
if (net_ratelimit())
;
This seems benign, except it isn't. Firstly, there's the obvious
overhead of calling net_ratelimit needlessly, which does quite some book
keeping for the rate limiting. Given that the pr_debug and
net_dbg_ratelimited family of functions are sprinkled liberally through
performance critical code, with developers assuming they'll be compiled
out to a no-op most of the time, we certainly do not want this needless
book keeping. Secondly, and most visibly, even though no debug message
is printed when DEBUG is not defined, if there is a flood of
invocations, dmesg winds up peppered with messages such as
"net_ratelimit: 320 callbacks suppressed". This is because our
aforementioned net_ratelimit() function actually prints this text in
some circumstances. It's especially odd to see this when there isn't any
other accompanying debug message.
So, in sum, it doesn't make sense to have this function's current
behavior, and instead it should match what every other debug family of
functions in the kernel does with !DEBUG -- nothing.
This patch replaces calls to net_dbg_ratelimited when !DEBUG with
no_printk, keeping with the idiom of all the other debug print helpers.
Also, though not strictly neccessary, it guards the call with an if (0)
so that all evaluation of any arguments are sure to be compiled out.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-06 23:51:30 -07:00
Update Viresh Kumar's email address
2015-07-17 16:39:53 -07:00
bcma: make calls to PCI hostmode functions config-safe
2015-06-08 14:33:26 +03:00
can: replace timestamp as unique skb attribute
2015-07-12 21:13:22 +02:00
libceph: enable ceph in a non-default network namespace
2015-07-09 20:30:34 +03:00
crush: sync up with userspace
2015-06-25 11:49:31 +03:00
fsl /bestcomm
gpio: Remove double "base" in comment
2015-07-16 00:12:24 +02:00
mfd: twl4030-power: Fix pmic for boards that need AC charger disabled
2015-06-22 12:25:04 +01:00
Input: improve parsing OF parameters for touchscreens
2015-06-25 14:45:46 -07:00
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2015-06-27 12:44:34 -07:00
Char/Misc driver patches for 4.2-rc1
2015-06-26 14:51:15 -07:00
net/mlx4_en: Add support for hardware accelerated 802.1ad vlan
2015-07-27 15:00:37 -07:00
net/mlx5_core: Support physical port counters
2015-08-06 22:00:59 -07:00
mmc: mediatek: Add Mediatek MMC driver
2015-06-18 09:20:48 +02:00
mtd: nand: Fix NAND_USE_BOUNCE_BUFFER flag conflict
2015-07-07 13:03:25 -07:00
netfilter: add and use jump label for xt_tee
2015-07-15 18:18:06 +02:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2015-06-23 14:08:54 -07:00
phy: for 4.2 merge window
2015-06-03 14:13:41 +09:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-07-31 17:10:56 -07:00
Merge remote-tracking branches 'regulator/topic/of', 'regulator/topic/pwm', 'regulator/topic/qcom' and 'regulator/topic/soft-start' into regulator-next
2015-06-22 11:19:56 +01:00
ARM: prima2: move to use REGMAP APIs for rtciobrg
2015-06-10 15:10:26 +08:00
timer: Reduce timer migration overhead if disabled
2015-06-19 15:18:28 +02:00
MIPS: BCM47xx: Extract info about et2 interface
2015-06-21 21:52:24 +02:00
NFS client updates for Linux 4.2
2015-07-02 11:32:23 -07:00
cdc_ncm: Add support for moving NDP to end of NCM frame
2015-07-09 14:58:31 -07:00
Merge branch 'acpi-scan'
2015-07-07 22:48:25 +02:00
libata: add ATA_HORKAGE_MAX_SEC_1024 to revert back to previous max_sectors limit
2015-07-15 11:47:24 -04:00
writeback: don't embed root bdi_writeback_congested in bdi_writeback
2015-07-02 08:46:00 -06:00
writeback: don't embed root bdi_writeback_congested in bdi_writeback
2015-07-02 08:46:00 -06:00
backlight: Change the return type of backlight_update_status() to int
2015-06-23 15:47:35 +01:00
MIPS: BCM47xx: Move NVRAM driver to the drivers/firmware/
2015-06-21 21:55:33 +02:00
blkcg: implement bio_associate_blkcg()
2015-06-02 08:33:34 -06:00
blkcg: fix blkcg_policy_data allocation bug
2015-07-09 14:41:11 -06:00
Revert "block, dm: don't copy bios for request clones"
2015-06-26 10:11:58 -04:00
- Revert block and DM core changes the removed request-based DM's
2015-06-26 12:35:01 -07:00
mm: only define hashdist variable when needed
2015-06-24 17:49:41 -07:00
bpf: introduce bpf_skb_vlan_push/pop() helpers
2015-07-20 20:52:31 -07:00
net: phy: broadcom: define Broadcom pseudo-PHY address in brcmphy.h
2015-06-10 23:33:58 -07:00
bufferhead: Add _gfp version for sb_getblk()
2015-07-02 01:32:44 -04:00
cgroup: require write perm on common ancestor when moving processes on the default hierarchy
2015-06-18 16:54:28 -04:00
Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-06-26 19:50:04 -07:00
clk: tegra: Changes for v4.2-rc1
2015-06-20 13:29:48 -07:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
clockevents: Rename state to state_use_accessors
2015-06-02 16:56:42 +02:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
compiler-gcc: integrate the various compiler-gcc[345].h files
2015-06-25 17:00:38 -07:00
compiler-intel: fix wrong compiler barrier() macro
2015-06-25 17:00:38 -07:00
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm
2015-07-11 20:44:31 -07:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
printk: implement support for extended console drivers
2015-06-25 17:00:38 -07:00
efi: Handle memory error structures produced based on old versions of standard
2015-07-15 13:30:38 +01:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
cpufreq: Avoid attempts to create duplicate symbolic links
2015-07-28 17:19:26 +02:00
Merge branches 'pm-sleep' and 'pm-runtime'
2015-06-19 01:18:02 +02:00
crypto: algif_aead - Temporarily disable all AEAD algorithms
2015-06-22 15:49:30 +08:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
Merge branch 'topic/xdmac' into for-linus
2015-06-25 09:21:49 +05:30
iommu: dmar: Provide helper to copy shared irte fields
2015-06-12 11:33:52 +02:00
firmware: dmi: struct dmi_header should be packed
2015-06-25 09:06:57 +02:00
The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
2015-06-29 10:34:42 -07:00
cfq-iosched: fix the setting of IOPS mode on SSDs
2015-06-10 08:01:20 -06:00
extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
2015-06-12 17:01:42 -07:00
fs/file.c: don't acquire files->file_lock in fd_install()
2015-07-01 02:30:09 -04:00
bpf: also show process name/pid in bpf_jit_dump
2015-07-30 11:13:21 -07:00
frontswap: allow multiple backends
2015-06-24 17:49:45 -07:00
locks: inline posix_lock_file_wait and flock_lock_file_wait
2015-07-13 06:29:11 -04:00
fsnotify: remove obsolete documentation
2015-06-24 17:49:38 -07:00
ftrace: Fix breakage of set_ftrace_pid
2015-07-24 13:58:14 -04:00
genalloc: rename of_get_named_gen_pool() to of_gen_pool_get()
2015-06-30 19:45:01 -07:00
mm: meminit: finish initialisation of struct pages before basic setup
2015-06-30 19:44:56 -07:00
First set of IIO fixes for the 4.2 cycle.
2015-07-13 14:18:07 -07:00
timer: Minimize nohz off overhead
2015-06-19 15:18:28 +02:00
mm: hugetlb: allow hugepages_supported to be architecture specific
2015-07-17 16:39:52 -07:00
net/core: Add reading VF statistics through the PF netdevice
2015-06-15 17:23:03 -07:00
macvtap: Increase limit of macvtap queues
2015-06-23 06:14:04 -07:00
sock_diag: specify info_size per inet protocol
2015-06-15 19:49:22 -07:00
net: ipv4 sysctl option to ignore routes when nexthop link is down
2015-06-24 02:15:54 -07:00
module: relocate module_init from init.h to module.h
2015-07-05 23:59:14 -04:00
Merge branch 'for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2015-06-26 19:50:04 -07:00
IOMMU Updates for Linux v4.2
2015-06-23 18:27:19 -07:00
x86/mm: Decouple <linux/vmalloc.h> from <asm/io.h>
2015-06-03 12:02:00 +02:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
net/ipv6: add sysctl option accept_ra_min_hop_limit
2015-07-30 15:56:40 -07:00
genirq: Clean up outdated comments related to include/linux/irqdesc.h
2015-06-25 12:06:34 +02:00
irqchip: Move IRQCHIP_DECLARE macro to include/linux/irqchip.h
2015-07-02 22:34:38 +02:00
hotplug: Prevent alloc/free of irq descriptors during cpu up/down
2015-07-08 11:32:25 +02:00
genirq: Remove irq_node()
2015-06-25 12:06:45 +02:00
jbd2: fix ocfs2 corrupt when updating journal superblock fails
2015-06-15 14:36:01 -04:00
time: Allow gcc to fold usecs_to_jiffies(constant)
2015-06-10 11:31:14 +02:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2015-07-03 15:20:57 -07:00
mm: kmemleak_alloc_percpu() should follow the gfp from per_alloc()
2015-06-24 17:49:46 -07:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
KVM: count number of assigned devices
2015-07-10 13:25:26 +02:00
sched/stop_machine: Fix deadlock between multiple stop_two_cpus()
2015-06-19 10:03:12 +02:00
libata: add ATA_HORKAGE_MAX_SEC_1024 to revert back to previous max_sectors limit
2015-07-15 11:47:24 -04:00
libnvdimm: Add sysfs numa_node to NVDIMM devices
2015-06-26 11:23:38 -04:00
Merge branch 'sched-hrtimers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-24 15:09:40 -07:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2015-06-27 13:26:03 -07:00
mailbox: Add ability for clients to request channels by name
2015-06-11 22:19:45 +05:30
memblock: introduce a for_each_reserved_mem_region iterator
2015-06-30 19:44:55 -07:00
Merge branch 'for-4.2/writeback' of git://git.kernel.dk/linux-block
2015-06-25 16:00:17 -07:00
mm: new arch_remap() hook
2015-06-24 17:49:41 -07:00
mm: meminit: make __early_pfn_to_nid SMP-safe and introduce meminit_pfn_in_nid
2015-06-30 19:44:56 -07:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
mm: clarify that the function operates on hugepage pte
2015-06-24 17:49:44 -07:00
mm: meminit: initialise a subset of struct pages if CONFIG_DEFERRED_STRUCT_PAGE_INIT is set
2015-06-30 19:44:56 -07:00
ACPI / scan: Add support for ACPI _CLS device matching
2015-07-07 01:55:20 +02:00
module: relocate module_init from init.h to module.h
2015-07-05 23:59:14 -04:00
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00
MPILIB: add mpi_read_buf() and mpi_get_size() helpers
2015-06-16 14:35:06 +08:00
mpls: ip tunnel support
2015-07-21 10:39:05 -07:00
libnvdimm: infrastructure for btt devices
2015-06-25 04:20:04 -04:00
net_dbg_ratelimited: turn into no-op when !DEBUG
2015-08-06 23:51:30 -07:00
net: add phys ID compare helper to test if two IDs are the same
2015-07-20 18:32:44 -07:00
netfilter: rename local nf_hook_list to hook_list
2015-07-23 16:18:35 +02:00
netfilter: bridge: reduce nf_bridge_info to 32 bytes again
2015-07-30 13:37:42 +02:00
netfilter: don't pull include/linux/netfilter.h from netns headers
2015-06-18 21:14:31 +02:00
netfilter: bridge: forward IPv6 fragmented packets
2015-06-12 14:10:12 +02:00
NFSv.2/pnfs Add a LAYOUTSTATS rpc function
2015-06-24 10:17:37 -04:00
NFS: nfs_mark_for_revalidate should always set NFS_INO_REVAL_PAGECACHE
2015-07-22 17:15:54 -04:00
NFS: Remove the "NFS_CAP_CHANGE_ATTR" capability
2015-07-22 17:15:54 -04:00
NFS: Remove unused nfs_rw_ops->rw_release() function
2015-06-10 18:32:40 -04:00
NFSv.2/pnfs Add a LAYOUTSTATS rpc function
2015-06-24 10:17:37 -04:00
watchdog: add watchdog_cpumask sysctl to assist nohz
2015-06-24 17:49:40 -07:00
NTB: Add NTB hardware abstraction layer
2015-07-04 14:04:44 -04:00
NTB: Split ntb_hw_intel and ntb_transport drivers
2015-07-04 14:05:49 -04:00
NVMe: Automatic namespace rescan
2015-06-05 10:58:34 -06:00
Devicetree changes for v4.2
2015-07-01 19:40:18 -07:00
of: constify drv arg of of_driver_match_device stub
2015-07-27 08:23:27 -05:00
Devicetree changes for v4.2
2015-07-01 19:40:18 -07:00
of: fix a build error to of_graph_get_endpoint_by_regs function
2015-06-24 11:18:48 +10:00
mm: oom_kill: simplify OOM killer locking
2015-06-24 17:49:43 -07:00
mm/page_owner: set correct gfp_mask on page_owner
2015-07-17 16:39:54 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-07-04 19:36:06 -07:00
Update Viresh Kumar's email address
2015-07-17 16:39:53 -07:00
Merge branches 'pci/aspm', 'pci/enumeration', 'pci/hotplug', 'pci/misc', 'pci/msi', 'pci/resource' and 'pci/virtualization' into next
2015-06-12 15:26:45 -05:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2015-06-24 16:49:49 -07:00
This patch series contains several clean ups and even a new trace clock
2015-06-26 14:02:43 -07:00
net: phy: Pass mdix ethtool setting through to phy driver
2015-07-10 23:17:32 -07:00
platform_device: better support builtin boilerplate avoidance
2015-06-16 14:12:37 -04:00
Merge branch 'pm-wakeirq'
2015-06-19 01:18:14 +02:00
The libnvdimm sub-system introduces, in addition to the libnvdimm-core,
2015-06-29 10:34:42 -07:00
power: Add devm_power_supply_get_by_phandle() helper function
2015-06-10 16:15:54 +02:00
sched, preempt_notifier: separate notifier registration from static_key inc/dec
2015-07-03 18:55:00 +02:00
include, lib: add __printf attributes to several function prototypes
2015-07-17 16:39:53 -07:00
device property: Introduces device_dma_is_coherent()
2015-06-15 14:40:49 +02:00
pwm: Add pwmchip_add_with_polarity() API
2015-06-12 11:36:30 +02:00
spi: pxa2xx: Prepare for new Intel LPSS SPI type
2015-06-05 11:40:45 +01:00
random: Remove kernel blocking API
2015-06-10 19:14:04 +08:00
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-06-22 18:57:44 -07:00
remoteproc: add a rproc ops for performing address translation
2015-06-17 09:57:12 +03:00
rtc: interface: Remove rtc_set_mmss()
2015-06-25 01:13:43 +02:00
switchdev; add VLAN support for port's bridge_getlink
2015-06-23 06:56:18 -07:00
drivers/scsi/scsi_debug.c: resolve sg buffer const-ness issue
2015-06-30 19:44:59 -07:00
x86/fpu, sched: Introduce CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT and use it on x86
2015-07-18 03:42:51 +02:00
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2015-06-27 13:26:03 -07:00
vfs: add seq_file_path() helper
2015-06-23 18:01:07 -04:00
Minor merge needed, due to function move.
2015-07-01 10:49:25 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2015-08-04 23:57:45 -07:00
Fix kmalloc slab creation sequence
2015-06-29 10:49:51 -07:00
smpboot: allow excluding cpus from the smpboot threads
2015-06-24 17:49:40 -07:00
sock_diag: define destruction multicast groups
2015-06-15 19:49:22 -07:00
stddef.h: move offsetofend inside #ifndef/#endif guard, neaten
2015-06-25 17:00:38 -07:00
stmmac: remove setup/free glue callbacks
2015-07-29 00:13:25 -07:00
lib/string.c: introduce strreplace()
2015-06-25 17:00:40 -07:00
This patch series contains several clean ups and even a new trace clock
2015-06-26 14:02:43 -07:00
sysctl: Allow creating permanently empty directories that serve as mountpoints.
2015-07-01 10:36:39 -05:00
sysfs: Add support for permanently empty directories to serve as mount points.
2015-07-01 10:36:45 -05:00
check_syslog_permissions() cleanup
2015-06-25 17:00:39 -07:00
tick/broadcast: Unbreak CONFIG_GENERIC_CLOCKEVENTS=n build
2015-07-07 21:56:34 +02:00
time: Prevent early expiry of hrtimers[CLOCK_REALTIME] at the leap second edge
2015-06-12 11:15:49 +02:00
time: Prevent early expiry of hrtimers[CLOCK_REALTIME] at the leap second edge
2015-06-12 11:15:49 +02:00
time: Get rid of do_posix_clock_monotonic_gettime
2015-07-09 10:51:46 +02:00
timer: Reduce timer migration overhead if disabled
2015-06-19 15:18:28 +02:00
net: make u64_stats_init() a function
2015-06-15 16:02:52 -07:00
vme: export vme_check_window()
2015-06-12 17:26:57 -07:00
md updates for 4.2
2015-06-29 11:10:56 -07:00
watchdog: watchdog_core: Add watchdog registration deferral mechanism
2015-06-29 11:51:06 +02:00
writeback: implement foreign cgroup inode detection
2015-06-02 08:40:20 -06:00
zpool: remove zpool_evict()
2015-06-25 17:00:37 -07:00
