- 16 Oct, 2008 40 commits
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Alan Cox authored
The I2O ioctls assume 32bits. In itself that is fine as they are old cards and nobody uses 64bit. However on LKML it was noted this assumption is also made for allocated memory and is unsafe on 64bit systems. Fixing this is a mess. It turns out there is tons of crap buried in a header file that does racy 32/64bit filtering on the masks. So we: - Verify all callers of the racy code can sleep (i2o_dma_[re]alloc) - Move the code into a new i2o/memory.c file - Remove the gfp_mask argument so nobody can try and misuse the function - Wrap a mutex around the problem area (a single mutex is easy to do and none of this is performance relevant) - Switch the remaining problem kmalloc holdout to use i2o_dma_alloc Cc: Markus Lidel <Markus.Lidel@shadowconnect.com> Cc: Vasily Averin <vvs@sw.ru> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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David Brownell authored
Make the SPI external GPIO expander drivers register themselves at subsys_initcall() time when they're statically linked, and make the SPI core do its driver model initialization earlier so that's safe. SOC-integrated GPIOs are available starting very early -- often before initcalls start to run, or earily in arch_initcall() at latest -- so this improves consistency, letting more subsystems rely on GPIOs being usable by their own subsys_initcall() code. Signed-off-by:
David Brownell <dbrownell@users.sourceforge.net> Signed-off-by:
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Lennert Buytenhek authored
Add support to orion_spi for the 88F6183 ARM SoC by adding code to work around a 6183-specific erratum. Signed-off-by:
Lennert Buytenhek <buytenh@marvell.com> Signed-off-by:
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Vernon Sauder authored
Make the chip info structure data optional by providing reasonable defaults. Improve corresponding documentation, and highlight the drawback of not providing explicit chipselect control. DMA can determine appropriate dma_burst_size and thresholds automatically so use DMA even if dma_burst_size is not specified. Signed-off-by:
Vernon Sauder <VernonInHand@gmail.com> Reviewed-by:
Ned Forrester <nforrester@whoi.edu> Signed-off-by:
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Guennadi Liakhovetski authored
Minor fixes: remove redundant local variable initialization, fix "can not" to what I _think_ is a preferred spelling, output IRQ number if requesting it failed. Signed-off-by:
Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by:
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Ben Dooks authored
Add a pin configuration callback for the s3c24xx SPI driver, as there are several options depending on the channel and the chip in use. This is needed as the controller may not have been setup by the initial bootloader and the fact that the SPI controller gets reset over suspend/resume into slave mode but the GPIO function registers do not. Signed-off-by:
Ben Dooks <ben-linux@fluff.org> Signed-off-by:
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Vernon Sauder authored
Modify spi_write_then_read() to use one transfer. This speeds up all callers, and is a minor code shrink. Signed-off-by:
Vernon Sauder <Vernon.Sauder@gmail.com> Signed-off-by:
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Kumar Gala authored
Now that arch/ppc is gone we don't need CONFIG_PPC_MERGE anymore remove the dead code associated with !CONFIG_PPC_MERGE. Signed-off-by:
Kumar Gala <galak@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: David Brownell <david-b@pacbell.net> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by:
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Kirill A. Shutemov authored
binfmt_script and binfmt_misc disallow recursion to avoid stack overflow using sh_bang and misc_bang. It causes problem in some cases: $ echo '#!/bin/ls' > /tmp/t0 $ echo '#!/tmp/t0' > /tmp/t1 $ echo '#!/tmp/t1' > /tmp/t2 $ chmod +x /tmp/t* $ /tmp/t2 zsh: exec format error: /tmp/t2 Similar problem with binfmt_misc. This patch introduces field 'recursion_depth' into struct linux_binprm to track recursion level in binfmt_misc and binfmt_script. If recursion level more then BINPRM_MAX_RECURSION it generates -ENOEXEC. [akpm@linux-foundation.org: make linux_binprm.recursion_depth a uint] Signed-off-by:
Kirill A. Shutemov <kirill@shutemov.name> Cc: Pavel Emelyanov <xemul@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by:
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Kirill A. Shutemov authored
This change is Alpha-specific. It adds field 'taso' into struct linux_binprm to remember if the application is TASO. Previously, field sh_bang was used for this purpose. Signed-off-by:
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Adrian Bunk authored
Add the missing MODULE_LICENSE("GPL"). Reported-by:Adrian Bunk <bunk@kernel.org> Signed-off-by:
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Andy Whitcroft authored
Signed-off-by:
Andy Whitcroft <apw@shadowen.org> Signed-off-by:
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Andy Whitcroft authored
When specifying case we may have comments and/or braces at the end without actually having a 'statement'. Allow for these to occur in any order. Signed-off-by:
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Andy Whitcroft authored
When ignoring a macro in the middle of a conditional, we need to ignore the macro start and any continuation lines. Signed-off-by:
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Andy Whitcroft authored
When reporting some complex trailing statements we report only the starting line of the error, that tends to imply the shown line is in error and confuse the reader. As we do know where the actual error is report that line too with an appropriate gap marker where applicable. #ERROR: trailing statements should be on next line #1: FILE: Z202.c:1: + for (pbh = page_buffers(bh->b_page); pbh != bh; + pbh = pbh->b_this_page, key++); #ERROR: trailing statements should be on next line #4: FILE: Z202.c:4: + for (pbh = page_buffers(bh->b_page); [...] + pbh = pbh->b_this_page, key++); Signed-off-by: -
Andy Whitcroft authored
When we want to confirm an export is directly after its definition we need to allow for DEFINE_ style macros. Add these to the execeptions. Refactor the exceptions. Signed-off-by:
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Andy Whitcroft authored
We are missing 'simple' values which include square brackets. Refactor to ensure we handle nesting correctly and detect these simple forms. Signed-off-by:
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Andy Whitcroft authored
When we hit and #else or #elif we know we are meeting an alternative piece of code. All bets are off on indent if we did not see the open of the control so stop checking. Signed-off-by:
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Andy Whitcroft authored
Within the type checker we have a number of common kernel types which must be implemented as typedefs. Pull those out so that we can use the same expressions to trigger exclusions. Signed-off-by:
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Andy Whitcroft authored
We are likely going to have 24 bit types. Expand the type matcher to match any size. Signed-off-by:
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Andy Whitcroft authored
We often see macros which define structure members, these are not complex and necessarily do not have braces or brackets. For example: #define _PLIST_HEAD_INIT(head) \ .prio_list = LIST_HEAD_INIT((head).prio_list), \ .node_list = LIST_HEAD_INIT((head).node_list) Signed-off-by: -
Andy Whitcroft authored
If we have sufficient context detect and handle do without braces ({). Else these incorrectly trigger a trailing statements error for the associated while. Signed-off-by: -
Andy Whitcroft authored
A label is not a candidate for a possible type. Exclude them. Signed-off-by:
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Andy Whitcroft authored
A do without braces '{' may trigger a false possible type 'do' and then this may be interpreted as an external definition of foo(): do foo(); while (bar); Add do to the type exclusions. Fix up tests so we can check for them. Signed-off-by: -
Andy Whitcroft authored
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Andy Whitcroft authored
We should only apply source checks to lines within hunks. Checks which are anchored in the context may falsly trigger in the commentory. Ensure they only match within valid hunk lines. Signed-off-by:
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Andy Whitcroft authored
Correct calculation of the number of lines of condition where we have suspect indent. Signed-off-by:
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Andy Whitcroft authored
Firmware may be included in the kernel as .ihex files. These are inherantly text, but not source. The line ending checks are applicable to these kinds of file, allow just these checks to apply to all files. Signed-off-by:
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Andy Whitcroft authored
Ensure that a close comment cannot incorrectly trigger in the middle of a string. Reported by Jaswinder Singh. Signed-off-by:
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Andy Whitcroft authored
When the last hunk of a patch is short it will trigger errors from checkpatch: Use of uninitialized value in pattern match (m//) at /usr/local/bin/checkpatch.pl line 394. Use of uninitialized value in concatenation (.) or string at /usr/local/bin/checkpatch.pl line 397. Use of uninitialized value in pattern match (m//) Avoid touching beyond the last line. Reported by Julien Brunel. Signed-off-by: -
Andy Whitcroft authored
We should only be checking changes lines for the trailing statement check on case/default statements. Signed-off-by:
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Andy Whitcroft authored
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Andy Whitcroft authored
So that we eat our own dog food ensure the indent checks apply to perl too. Signed-off-by:
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Andy Whitcroft authored
Report the correct lines for single statement blocks. Currently we are reporting the right number of lines, but not skipping the negative lines. Signed-off-by:
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Andy Whitcroft authored
Ensure that we handle literal %'s correctly when adjacent to a %Lx. %Lx bad %%Lx good %%%Lx bad Signed-off-by:
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Andy Whitcroft authored
We should skip over and check the lines which follow preprocessor statements, labels, and blank lines. These all have legitimate reasons to be indented differently. Signed-off-by:
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Andy Whitcroft authored
We are currently only reporting syspect indents if the conditional is modified but the indent missmatch could be generated by the body changing, make sure we catch both. Also only report the first line of the body, and more importantly make sure we report the raw copy of the line. Finally report the indent levels to make it easier to understand what is wrong. Signed-off-by:
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Andy Whitcroft authored
Absolute references to kernel source files are generally only useful locally to the originator of the patch. Check for any such references and report them. Signed-off-by:
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Andy Whitcroft authored
It is much more likely that an architecture file will want to directly include asm header files. Reduce this WARNING to a CHECK when the referencing file is in the arch directory. Signed-off-by:
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Andy Whitcroft authored
It is possible to have other include/asm paths within the tree which are not subject to the do not edit checks. Ignore those. Signed-off-by:
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