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path: root/drivers/staging/slicoss
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2016-04-30staging: slicoss: fix missing blank lineClifton Barnes
fix checkpatch.pl warning about 'Missing a blank line after declarations' Signed-off-by: Clifton Barnes <clifton.a.barnes@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-30staging: slicoss: fix bare use of 'unsigned'Clifton Barnes
fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of 'unsigned'' Signed-off-by: Clifton Barnes <clifton.a.barnes@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-28staging: slicoss: Add error check for pci_map_singleAmitoj Kaur Chawla
Currently, DMA mapping failure is not detected, causing the hardware to attempt a DMA from an invalid address. This patch adds the corresponding error check for pci_map_single i.e. pci_dma_mapping_error. Problem found using the following Coccinelle semantic patch: // <smpl> @@ expression e1; identifier x; @@ x= ( *dma_map_single(...) | *dma_map_page(...) ) ... when != dma_mapping_error(e1,x) @@ expression e1; identifier x; @@ x = ( *pci_map_single(...) | *pci_map_page(...) ) ... when != pci_dma_mapping_error(e1,x) // </smpl> Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: changes comparisons to NULL in slicoss.cBen Marsh
This is a patch to slicoss.c to change the style of NULL comparisons in order to remove checkpatch.pl warnings. Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: removes unnecessary blank lines in slicoss.cBen Marsh
This is a patch to slicoss.c to remove unnecessary blank lines as found by checkpatch.pl Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: change memory allocation style in slicoss.cBen Marsh
This is a patch to slicoss.c to change the memory allocation style in slicoss.c as found by checkpatch.pl Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: changes the style of memory allocation in slicoss.cBen Marsh
This is a patch to slicoss.c to change the memory allocation style as identified by checkpatch.pl Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: changes memory allocation style in slicoss.cBen Marsh
This is a patch to slicoss.c that changes the memory allocation style as identified by checkpatch.pl Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12Staging: slicoss: memory allocation style change in slicoss.cBen Marsh
This is a patch to slicoss.c to change the memory allocation style as identified by checkpatch.pl Signed-off-by: Ben Marsh <bmarsh94@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-03-12staging: slicoss: Eliminate commented out codeJanani Ravichandran
Remove commented out code to reduce code clutter. Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-12staging: slicoss: Align #define constantsJanani Ravichandran
Aligning the constants in the macros improves code readability. Signed-off-by: Janani Ravichandran <janani.rvchndrn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-07staging/slicoss: Use ethtool_ops instead of module_param.Kevin Wern
ethtool_ops has attributes in sub struct ethtool_coalesce that correspond to the parameters intagg_delay and dynamic_intagg. It is preferable to set these properties with ethtool rather than module_param, so create these attributes in adapter and set them using ethtool_coalesce's rx_coalesce_usecs and rx_use_adaptive_coalesce. (Outlined in TODO file) Signed-off-by: Kevin Wern <kevin.m.wern@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27staging: slicoss: Fixes block comment styleAmarjargal Gundjalam
This patch fixes the checkpatch.pl warnings: WARNING: Block comments use * on subsequent lines WARNING: Block comments use a trailing */ on a separate line Signed-off-by: Amarjargal Gundjalam <amarjargal.gundjalam@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27staging: slicoss: Adds space around operatorsAmarjargal Gundjalam
This patch fixes the checkpatch.pl check: CHECK: spaces preferred around that ‘’ Signed-off-by: Amarjargal Gundjalam <amarjargal.gundjalam@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27staging: slicoss: Removes unnecessary space after a castAmarjargal Gundjalam
This patch fixes the checkpatch.pl check: CHECK: No space is necessary after a cast Signed-off-by: Amarjargal Gundjalam <amarjargal.gundjalam@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-27staging: slicoss: Removes multiple blank linesAmarjargal Gundjalam
This patch fixes the checkpatch.pl check: CHECK: Please don't use multiple blank lines Signed-off-by: Amarjargal Gundjalam <amarjargal.gundjalam@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-17Staging: slicoss: Remove unnecessary cast on void pointerShraddha Barke
void pointers do not need to be cast to other pointer types. The semantic patch used to find this: @r@ expression x; void* e; type T; identifier f; @@ ( *((T *)e) | ((T *)x)[...] | ((T *)x)->f | - (T *) e ) Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-19staging: slicoss: use status in isrSudip Mukherjee
If we are not able to setup the LINK UP command then don't increment the interrupt count. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-19staging: slicoss: use status in slic_ioctlSudip Mukherjee
In the ioctl function if we are not able to UP the link after setting the new parameters then return an error code to the userspace. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-19staging: slicoss: use status in slic_if_initSudip Mukherjee
While initializing the interface if we are not able to setup the command to UP the link then we release everything and return the error code. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-19staging: slicoss: return status of slic_link_event_handlerSudip Mukherjee
slic_link_event_handler() issues command READ_LINK_STATUS to be executed asynchronously, which is followed by UP configuration write command. But it can fail while setting up the command and in that case the link will not be up. Lets check the status and return it. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-07-31staging: slicoss: Add blank line after variable declarations.Ciprian Manea
This patch fixes the checkpatch.pl warning: WARNING: Missing a blank line after declarations + unsigned long flags; + pshmem = (struct slic_shmem *)(unsigned long) Signed-off-by: Ciprian Manea <ciprian.manea.cm@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-06-18staging: slicoss: remove unused macroHari Prasath Gujulan Elango
This patch removes a couple of ununsed MACRO's in this header file Signed-off-by: Hari Prasath Gujulan Elango <hgujulan@visteon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-31staging: slicoss: restore IRQs correctly after slic_cmdq_reset()Dan Carpenter
We can't save two different values in "flags" so it means that IRQs are not enabled properly at the end of this function. This isn't a problem in the current code because it's always called with IRQs disabled so we don't want to enable them at the end. This bug is old but it's thanks to David Matlack's recent cleanups that Smatch can detect it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-13staging: slicoss: fix occasionally writing out only half of a dma addressDavid Matlack
curaddrupper caches the last written upper 32-bits of a dma address (the device has one register for the upper 32-bits of all dma address registers). The problem is, not every dma address write checks and sets curaddrupper. This causes the driver to occasionally not write the upper 32-bits of a dma address to the device when it really should. I've seen this manifest particularly when the driver is trying to read config data from the device (RCONFIG) in order to checksum the device's eeprom. Since the device writes its config data to the wrong DMA address the driver reads 0 as the eeprom size and the eeprom checksum fails. This patch fixes the issue by removing curaddrupper and always writing the upper 32-bits of dma addresses. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-13staging: slicoss: remove slic_spinlock wrapperDavid Matlack
As per TODO. This commit introduces no functional changes. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-26Staging: slicoss: Remove redundant and disabled code blockNiranjan Dighe
Removing code guarded by undefined macro SLIC_TRACE_DUMP_ENABLED Signed-off-by: Niranjan Dighe <niranjan.dighe@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-06Staging: slicoss: clean dev_err loggingHaneen Mohammed
This patch removes __func__ from dev_err. dev_err includes information about: (devcice, driver, specific instance of device, etc) in the log printout. This was done using Coccinelle, with the following semantic patch: @a@ expression E, R; expression msg; @@ dev_err(E, msg, __func__, R); @script:python b@ e << a.msg; y; @@ if(e.find("%s: ") == True): m = e.replace("%s: ", "", 1); coccinelle.y = m; elif(e.find("%s ") == True): m = e.replace("%s ", "", 1); coccinelle.y = m; elif(e.find("%s:") == True): m = e.replace("%s:", "", 1); coccinelle.y = m; else: m = e.replace("%s", "",1); coccinelle.y = m; @c@ expression a.E, a.msg, a.R; identifier b.y; @@ - dev_err(E, msg, __func__, R); + dev_err(E, y, R); Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-06staging: slicoss: remove extra parentheses around left bit shift operationsAya Mahfouz
Removes extra parentheses around bitwise left shift operations. The case handled is when resultant value is assigned to a variable. The issue was detected and resolved using the following coccinelle script: @@ expression e, e1; constant c; @@ e = -(e1 +e1 << -c); +c; @@ identifier i; constant c; type t; expression e; @@ t i = -(e +e << -c); +c; @@ expression e, e1; identifier f; constant c; @@ e1 = f(..., -(e +e << -c) +c ,...); Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-06staging: slicoss: remove extra parentheses around right bit shift operationsAya Mahfouz
Removes extra parentheses around bitwise right shift operations. The cases handled here are when resultant values are assigned to variables. The issue was detected and resolved using the following coccinelle script: @@ expression e, e1; constant c; @@ e = -(e1 +e1 >> -c); +c; @@ identifier i; constant c; type t; expression e; @@ t i = -(e +e >> -c); +c; @@ expression e, e1; identifier f; constant c; @@ e1 = f(..., -(e +e >> -c) +c ,...); Some coding style issues were handled manually to avoid checkpatch warnings and errors. Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-02staging: Remove <linux/moduleparam.h> header.Navya Sri Nizamkari
This patch drops #include <linux/moduleparam.h> in all the staging driver files that also include #include <linux/module.h> as module.h includes moduleparam.h already. The following semantic patch is used to make these changes: @ includesmodule @ @@ @ depends on includesmodule @ @@ - #include <linux/moduleparam.h> Signed-off-by: Navya Sri Nizamkari <navyasri.tech@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26Staging: slicoss: Join split string.Ksenija Stanojevic
This patch fixes warning issue by checkpatch.pl by joining the split string. And also creates new warning that line exceeds 80 characters. In this case this is more beneficial because of possibility to grep the string. Signed-off-by: Ksenija Stanojevic <ksenija.stanojevic@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26staging: slicloss: replace init_timer by setup_timerAya Mahfouz
This patch replaces init_timer and the 2 step initialization of function and data by setup_timer to make the code more concise. The issue was discovered using the following coccinelle script: @@ expression ds, e1, e2; @@ -init_timer (&ds); +setup_timer (&ds, e1, e2); ... ( -ds.function = e1; ... -ds.data = e2; | -ds.data = e2; ... -ds.function = e1; ) Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-12-03Staging: slicoss: Fix long line issues in slicoss.cSean Cleator
A patch to the slicoss.c file to fix some of the long line issues found by the checkpath.pl tool Signed-off-by: Sean Cleator <seancleator@hotmail.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-28Staging: slicoss: Removed unnecessary parenthesesTina Johnson
Unnecessary parentheses around the right hand side of an assignment is removed using the following semantic patch: @@ identifier x,f; constant C; @@ ( -x = (f / C ); +x = f / C ; | -x = (f % C ); +x = f % C ; ) Signed-off-by: Tina Johnson <tinajohnson.1234@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-27staging: slicoss: Use inplace convert with __be32 *Ebru Akagunduz
This patch fixes "cast to restricted __be32" sparse warning. remove temporary value assignment and use inplace __be32 conversion for ntohl function which is can get big endian format Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-20staging: slicoss: Fix warning of prefer ether_addr_copy().Dilek Uzulmez
This patch fixes the following checkpatch.pl warnings: WARNING: "Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)" in file slicoss.c Pahole shows that the addresses are aligned. Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-29staging: slicoss: Fix void function return statements style warningDilek Uzulmez
This fixes "void function return statements are not generally useful" checkpatch.pl warning slicoss.c Signed-off-by: Dilek Uzulmez <dilekuzulmez@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-16staging: slicoss: fix a blank line coding style issueQuentin Lambert
Add 2 missing blank lines after declaration. Signed-off-by: Quentin Lambert <lambert.quentin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-08-08staging: use pci_zalloc_consistentJoe Perches
Remove the now unnecessary memset too. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Lior Dotan <liodot@gmail.com> Cc: Christopher Harrer <charrer@alacritech.com> Cc: Forest Bond <forest@alittletooquiet.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-06-27Staging: slicoss: fixed frivolous else statement warnings in slicoss.cVincent Heuken
This is a patch for the slicoss.c file that fixes four instances of the following warning: WARNING: else is not generally useful after a break or return Signed-off-by: Vincent Heuken <me@vincentheuken.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-25staging: slicoss: clean up use of dev_errDavid Matlack
First, don't print pci device information or driver prefixes, this is already printed by dev_err. Next, don't report error messages via dev_err when the failing function already reports all errors via dev_err. Signed-off-by: David Matlack <matlackdavid@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-25staging: slicoss: remove private netdev listDavid Matlack
Remove the private linked list of netdev structs. This list isn't being used anyway. This patch has no noticable effect. Signed-off-by: David Matlack <matlackdavid@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: handle errors from slic_config_getDavid Matlack
slic_config_get() can fail. Change the return type from void to int and handle the error in slic_card_init(). So now, instead of silently failing (and then timing out waiting for the config data), the driver will fail loudly at request time. Signed-off-by: David Matlack <matlackdavid@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: fail on corrupt eepromDavid Matlack
Remove fail_on_bad_eeprom, which was always 0 and thus being used to ignore incorrect checksumming. This means devices with corrupt eeprom will now cause the driver to fail. Since fail_on_bad_eeprom was the last member in use of struct slic_reg_params, remove that struct altogether. Signed-off-by: David Matlack <matlackdavid@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: fix eeprom checksum codeDavid Matlack
Rewrite slic_eeprom_cksum() to fix bugs and make readable. This patch technically has no effect on the user as failed eeprom checksums are ignored anyway. The original implementation had the following issues: 1. 2 of the 3 unrolled loops had the following bug: while ((len -= 32) >= 0) { [...] sum += w[15]; w = (u16 *)((ulong) w + 16); /* verify */ } This processes 32-bytes of data but only increments the word pointer by 16 bytes. Fixing both of these bugs seems to fix slic_eeprom_cksum(). 2. Non-descriptive variable names, use of unions, and macros that change local state make the code difficult to read. 3. The checksum loop is unrolled which makes the code harder to reason about while providing small performance improvement: - max eeprom length is 0x80 bytes (MAX_EECODE_SIZE), that's only 0x40 iterations - checksum is only computed during pci probe(), so not very often Tested on Mojave card Signed-off-by: David Matlack <matlackdavid@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: fix use-after-free bug in slic_entry_removeDavid Matlack
This patch fixes a use-after-free bug that causes a null pointer dereference in slic_entry_halt. Since unregister_netdev() will ultimately call slic_entry_halt (the net_device ndo_stop() virtual function for this device), we should call it before freeing the memory used by slic_entry_halt. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: fix 64-bit isr address bugDavid Matlack
This patch fixes a bug that only manifests when the physical address of the interrupt status register is >4GB. Specifically, the driver was only telling the device about the lower 32 bits of the ISR. This patch adds the upper 32 bits. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: fix dma memory leakDavid Matlack
This patch fixes a memory leak in slic_card_init. If the driver fails to poll for an interrupt after requesting config data from the device the dma memory is never freed. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: slicoss: remove gratuitous debug infrastructureDavid Matlack
As per the TODO file, this patch removes the gratuitous debug infrastructure. As an extra incentive for removing this code, the debugfs files are not cleaned up properly. For example, if register_netdev() fails in slic_entry_probe() then all debugfs files get left behind, even after the driver module is unloaded. Touching these files quickly leads to an oops. Signed-off-by: David Matlack <dmatlack@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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