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2015-02-20be2net: Add a few inline functions to test TXQ conditionsSriharsha Basavapatna1-4/+18
- Check qfull condition - Check qwake condition - Check pkts pending completion Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20be2net: Minor code cleanup in tx completion processSriharsha Basavapatna2-23/+31
- To avoid multiple accesses to CQE, extract compl_status and end_idx from be_tx_compl_get(). Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20be2net: Refactor be_xmit_enqueue() routineSriharsha Basavapatna1-40/+86
- Reduce code duplication by moving WRB-frags setup into a function. - Do not setup WRB-header before frags are setup, which is unncessary if there's errors while setting up frags. We should only grab an entry for the header, setup the frags and if everything is fine setup the header. - The error cleanup can be moved into a small function. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-20be2net: Refactor wrb_fill_hdr() routineSriharsha Basavapatna2-39/+99
The WRB header is setup by wrb_fill_hdr() routine. This routine currently gets some of the WRB params as args and figures out rest of the WRB params by looking at various fields in skb (like gso, checksum, vlan-tag etc). All these params could instead be retrieved from the skb into a structure and passed to this routine. This separates wrb_fill_hdr() to only provide chip-specific code to fill the WRB. This also makes it simple to support chips with different WRB formats. Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19net: dsa: mv88e6171: Enable access to phys via internal mdio busAndrew Lunn1-8/+10
When the device is configured to use single chip addressing mode, the phy devices of the port are not accessible on the host MDIO bus. Instead the switch internal MDIO bus must be used. For this to work, the phy polling unit must be enabled. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19net: dsa: mv88e6352: Refactor shareable codeAndrew Lunn3-65/+71
The mv88e6352 allows access to the port phys via an internal mdio bus which is accessed using registers in the GLOBAL 2 range. The mv88e6171 and probably other devices use the same mechanism. Move this code into the shared mv88e6xxx.c library. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19net: eth: altera: Change reset_mac failure message masks from err to dbgVince Bridgers1-2/+10
This debug output is not really an error message since mac reset can fail if the phy clocks are gated, specifically when the phy has been placed in a powered down or isolation mode. The netdev output masks were changed from err to dbg, and comments added in the code. Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19net: eth: altera: Change access ports to mdio for all xMII applicationsVince Bridgers1-4/+4
Change use of Altera TSE's MDIO access from phy 0 registers to phy 1 registers. This allows support for GMII, MII, RGMII, and SGMII designs where the external PHY is always accesible through Altera TSE's MDIO phy 1 registers and Altera's PCS is accessible through MDIO phy 0 registers for SGMII applications. Signed-off-by: Vince Bridgers <vbridger@opensource.altera.com> Tested-by: Kai Lin Ng <kailng@altera.com> Tested-by: Dalon Westergreen <dwesterg@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19r8152: support setting rx coalescehayeswang1-0/+57
Support setting the rx coalesce. Then someone could change the rx agg timeout value through ethtool. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19r8152: change rx early size when the mtu is changedhayeswang1-1/+15
The rx early size is calculated with the mtu, so it has to be re-calculated when the mtu is changed. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19r8152: separate USB_RX_EARLY_AGGhayeswang1-26/+32
Separate USB_RX_EARLY_AGG into USB_RX_EARLY_TIMEOUT and USB_RX_EARLY_SIZE. Replace r8153_set_rx_agg() with r8153_set_rx_early_timeout() and r8153_set_rx_early_size(). Set the default timeout value according to the USB speed. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-18md/raid5: Fix livelock when array is both resyncing and degraded.NeilBrown1-1/+2
Commit a7854487cd7128a30a7f4f5259de9f67d5efb95f: md: When RAID5 is dirty, force reconstruct-write instead of read-modify-write. Causes an RCW cycle to be forced even when the array is degraded. A degraded array cannot support RCW as that requires reading all data blocks, and one may be missing. Forcing an RCW when it is not possible causes a live-lock and the code spins, repeatedly deciding to do something that cannot succeed. So change the condition to only force RCW on non-degraded arrays. Reported-by: Manibalan P <pmanibalan@amiindia.co.in> Bisected-by: Jes Sorensen <Jes.Sorensen@redhat.com> Tested-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: NeilBrown <neilb@suse.de> Fixes: a7854487cd7128a30a7f4f5259de9f67d5efb95f Cc: stable@vger.kernel.org (v3.7+)
2015-02-17seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNOKees Cook1-1/+3
The value resulting from the SECCOMP_RET_DATA mask could exceed MAX_ERRNO when setting errno during a SECCOMP_RET_ERRNO filter action. This makes sure we have a reliable value being set, so that an invalid errno will not be ignored by userspace. Signed-off-by: Kees Cook <keescook@chromium.org> Reported-by: Dmitry V. Levin <ldv@altlinux.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Will Drewry <wad@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17samples/seccomp: improve label helperKees Cook2-1/+9
Fixes a potential corruption with uninitialized stack memory in the seccomp BPF sample program. [akpm@linux-foundation.org: coding-style fixlet] Signed-off-by: Kees Cook <keescook@chromium.org> Reported-by: Robert Swiecki <swiecki@google.com> Tested-by: Robert Swiecki <swiecki@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17ipc,sem: use current->state helpersDavidlohr Bueso1-1/+1
Call __set_current_state() instead of assigning the new state directly. These interfaces also aid CONFIG_DEBUG_ATOMIC_SLEEP environments, keeping track of who changed the state. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: disable pagination while printing from breakpoint handlerJan Kiszka1-0/+11
While reporting the (refreshed) list of modules on automatic updates we may hit the page boundary of the output console and cause a stop if pagination is enabled. However, gdb does not accept user input while running over the breakpoint handler. So we get stuck, and the user is forced to interrupt gdb. Resolve this by disabling pagination during automatic symbol updates. We restore the user's configuration once done. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: define maintainerJan Kiszka1-0/+5
I'm proposing myself for keeping an eye on these scripts and integrating contributions. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: convert CpuList to generator functionJan Kiszka2-40/+33
Yet another code simplification. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: convert ModuleList to generator functionJan Kiszka2-23/+12
Analogously to the task list, convert the module list to a generator function. It noticeably simplifies the code. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: use a generator instead of iterator for task listDaniel Wagner1-30/+20
The iterator does not return any task_struct from the thread_group list because the first condition in the 'if not t or ...' will only be the first time None. Instead of keeping track of the state ourself in the next() function, we fall back using Python's generator. Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: ignore byte-compiled python filesDaniel Thompson2-0/+3
Using the gdb scripts leaves byte-compiled python files in the scripts/ directory. These should be ignored by git. [jan.kiszka@siemens.com: drop redundant mrproper rule as suggested by Michal] Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-17scripts/gdb: port to python3 / gdb7.7Pantelis Koukousoulas6-9/+18
I tried to use these scripts in an ubuntu 14.04 host (gdb 7.7 compiled against python 3.3) but there were several errors. I believe this patch fixes these issues so that the commands now work (I tested lx-symbols, lx-dmesg, lx-lsmod). Main issues that needed to be resolved: * In python 2 iterators have a "next()" method. In python 3 it is __next__() instead (so let's just add both). * In older python versions there was an implicit conversion in object.__format__() (used when an object is in string.format()) where it was converting the object to str first and then calling str's __format__(). This has now been removed so we must explicitly convert to str the objects for which we need to keep this behavior. * In dmesg.py: in python 3 log_buf is now a "memoryview" object which needs to be converted to a string in order to use string methods like "splitlines()". Luckily memoryview exists in python 2.7.6 as well, so we can convert log_buf to memoryview and use the same code in both python 2 and python 3. This version of the patch has now been tested with gdb 7.7 and both python 3.4 and python 2.7.6 (I think asking for at least python 2.7.6 is a reasonable requirement instead of complicating the code with version checks etc). Signed-off-by: Pantelis Koukousoulas <pktoss@gmail.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Wessel <jason.wessel@windriver.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Ben Widawsky <ben@bwidawsk.net> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>