From 0335cb469ad4ab3072a4246ceb0573483fcee5bf Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Tue, 2 Oct 2012 11:16:15 -0700 Subject: Documentation: remove depends on CONFIG_EXPERIMENTAL The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. CC: Rob Landley CC: Jiri Kosina CC: Masanari Iida CC: Jason Wessel CC: Richard L Maliszewski CC: Gang Wei CC: Shane Wang CC: Harry Wei Signed-off-by: Kees Cook Acked-by: Jason Wessel --- Documentation/CodingStyle | 10 +--------- Documentation/DocBook/kernel-hacking.tmpl | 7 ------- Documentation/DocBook/kgdb.tmpl | 6 ++---- Documentation/intel_txt.txt | 2 +- Documentation/zh_CN/CodingStyle | 7 ------- 5 files changed, 4 insertions(+), 28 deletions(-) (limited to 'Documentation') diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle index 495e5ba1634..e00b8f0dde5 100644 --- a/Documentation/CodingStyle +++ b/Documentation/CodingStyle @@ -546,15 +546,7 @@ config AUDIT logging of avc messages output). Does not do system-call auditing without CONFIG_AUDITSYSCALL. -Features that might still be considered unstable should be defined as -dependent on "EXPERIMENTAL": - -config SLUB - depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT - bool "SLUB (Unqueued Allocator)" - ... - -while seriously dangerous features (such as write support for certain +Seriously dangerous features (such as write support for certain filesystems) should advertise this prominently in their prompt string: config ADFS_FS_RW diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl index eee71426ecb..22e0bd1adf2 100644 --- a/Documentation/DocBook/kernel-hacking.tmpl +++ b/Documentation/DocBook/kernel-hacking.tmpl @@ -1184,13 +1184,6 @@ static struct block_device_operations opt_fops = { Documentation/kbuild/kconfig-language.txt. - - You may well want to make your CONFIG option only visible if - CONFIG_EXPERIMENTAL is enabled: this serves as a - warning to users. There many other fancy things you can do: see - the various Kconfig files for ideas. - - In your description of the option, make sure you address both the expert user and the user who knows nothing about your feature. Mention diff --git a/Documentation/DocBook/kgdb.tmpl b/Documentation/DocBook/kgdb.tmpl index 4ee4ba3509f..f77358f9693 100644 --- a/Documentation/DocBook/kgdb.tmpl +++ b/Documentation/DocBook/kgdb.tmpl @@ -94,10 +94,8 @@ Kernel config options for kgdb - To enable CONFIG_KGDB you should first turn on - "Prompt for development and/or incomplete code/drivers" - (CONFIG_EXPERIMENTAL) in "General setup", then under the - "Kernel debugging" select "KGDB: kernel debugger". + To enable CONFIG_KGDB you should look under + "Kernel debugging" and select "KGDB: kernel debugger". While it is not a hard requirement that you have symbols in your diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt index 849de1a78e7..91d89c54070 100644 --- a/Documentation/intel_txt.txt +++ b/Documentation/intel_txt.txt @@ -192,7 +192,7 @@ grub.conf needs to be modified as follows: The kernel option for enabling Intel TXT support is found under the Security top-level menu and is called "Enable Intel(R) Trusted -Execution Technology (TXT)". It is marked as EXPERIMENTAL and +Execution Technology (TXT)". It is considered EXPERIMENTAL and depends on the generic x86 support (to allow maximum flexibility in kernel build options), since the tboot code will detect whether the platform actually supports Intel TXT and thus whether any of the diff --git a/Documentation/zh_CN/CodingStyle b/Documentation/zh_CN/CodingStyle index ecd9307a641..654afd72eb2 100644 --- a/Documentation/zh_CN/CodingStyle +++ b/Documentation/zh_CN/CodingStyle @@ -462,13 +462,6 @@ config AUDIT logging of avc messages output). Does not do system-call auditing without CONFIG_AUDITSYSCALL. -仍然被认为不够稳定的功能应该被定义为依赖于“EXPERIMENTAL”： - -config SLUB - depends on EXPERIMENTAL && !ARCH_USES_SLAB_PAGE_STRUCT - bool "SLUB (Unqueued Allocator)" - ... - 而那些危险的功能（比如某些文件系统的写支持）应该在它们的提示字符串里显著的声明这 一点： -- cgit v1.2.3-18-g5258 From 7a555613eb77c69eb6e48b61bc5f72dd42fa1780 Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Wed, 5 Dec 2012 16:48:27 -0500 Subject: dynamic_debug: dynamic hex dump Introduce print_hex_dump_debug() that can be dynamically controlled, similar to pr_debug. Also, make print_hex_dump_bytes() dynamically controlled Implement only 'p' flag (_DPRINTK_FLAGS_PRINT) to keep it simple since hex dump prints multiple lines and long prefix would impact readability. To provide line/file etc. information, use pr_debug or similar before/after print_hex_dump_debug() Signed-off-by: Vladimir Kondratiev Signed-off-by: Jason Baron Signed-off-by: Greg Kroah-Hartman --- Documentation/dynamic-debug-howto.txt | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/dynamic-debug-howto.txt b/Documentation/dynamic-debug-howto.txt index 6e1684981da..72322c6d735 100644 --- a/Documentation/dynamic-debug-howto.txt +++ b/Documentation/dynamic-debug-howto.txt @@ -6,8 +6,16 @@ This document describes how to use the dynamic debug (dyndbg) feature. Dynamic debug is designed to allow you to dynamically enable/disable kernel code to obtain additional kernel information. Currently, if -CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() calls can -be dynamically enabled per-callsite. +CONFIG_DYNAMIC_DEBUG is set, then all pr_debug()/dev_dbg() and +print_hex_dump_debug()/print_hex_dump_bytes() calls can be dynamically +enabled per-callsite. + +If CONFIG_DYNAMIC_DEBUG is not set, print_hex_dump_debug() is just +shortcut for print_hex_dump(KERN_DEBUG). + +For print_hex_dump_debug()/print_hex_dump_bytes(), format string is +its 'prefix_str' argument, if it is constant string; or "hexdump" +in case 'prefix_str' is build dynamically. Dynamic debug has even more useful features: @@ -202,6 +210,9 @@ The flags are: t Include thread ID in messages not generated from interrupt context _ No flags are set. (Or'd with others on input) +For print_hex_dump_debug() and print_hex_dump_bytes(), only 'p' flag +have meaning, other flags ignored. + For display, the flags are preceded by '=' (mnemonic: what the flags are currently equal to). -- cgit v1.2.3-18-g5258 From 2202d4e81bade6a10a58897d2bb24a5db5950a1c Mon Sep 17 00:00:00 2001 From: Marko Katic Date: Thu, 13 Dec 2012 19:14:54 +0100 Subject: Documentation: devres: add PHY get/put functions to list of supported calls Signed-off-by: Marko Katic Signed-off-by: Greg Kroah-Hartman --- Documentation/driver-model/devres.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 43cff70465a..db5e4448e6c 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -288,3 +288,7 @@ PINCTRL PWM devm_pwm_get() devm_pwm_put() + +PHY + devm_usb_get_phy() + devm_usb_put_phy() -- cgit v1.2.3-18-g5258 From aa8820cc3b6e2ce67b1ec320d02e9ce0f72275ea Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 16 Jan 2013 18:53:12 -0800 Subject: Documentation/laptops: remove depends on CONFIG_EXPERIMENTAL The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. CC: Rob Landley CC: Randy Dunlap Signed-off-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- Documentation/laptops/thinkpad-acpi.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt index 9d666828915..cf7bc6cb971 100644 --- a/Documentation/laptops/thinkpad-acpi.txt +++ b/Documentation/laptops/thinkpad-acpi.txt @@ -1398,7 +1398,7 @@ Sysfs notes: EXPERIMENTAL: UWB ----------------- -This feature is marked EXPERIMENTAL because it has not been extensively +This feature is considered EXPERIMENTAL because it has not been extensively tested and validated in various ThinkPad models yet. The feature may not work as expected. USE WITH CAUTION! To use this feature, you need to supply the experimental=1 parameter when loading the module. -- cgit v1.2.3-18-g5258 From 75096579c3ac39ddc2f8b0d9a8924eba31f4d920 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Mon, 21 Jan 2013 11:08:54 +0100 Subject: lib: devres: Introduce devm_ioremap_resource() The devm_request_and_ioremap() function is very useful and helps avoid a whole lot of boilerplate. However, one issue that keeps popping up is its lack of a specific error code to determine which of the steps that it performs failed. Furthermore, while the function gives an example and suggests what error code to return on failure, a wide variety of error codes are used throughout the tree. In an attempt to fix these problems, this patch adds a new function that drivers can transition to. The devm_ioremap_resource() returns a pointer to the remapped I/O memory on success or an ERR_PTR() encoded error code on failure. Callers can check for failure using IS_ERR() and determine its cause by extracting the error code using PTR_ERR(). devm_request_and_ioremap() is implemented as a wrapper around the new API and return NULL on failure as before. This ensures that backwards compatibility is maintained until all users have been converted to the new API, at which point the old devm_request_and_ioremap() function should be removed. A semantic patch is included which can be used to convert from the old devm_request_and_ioremap() API to the new devm_ioremap_resource() API. Some non-trivial cases may require manual intervention, though. Signed-off-by: Thierry Reding Cc: Arnd Bergmann Acked-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman --- Documentation/driver-model/devres.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index db5e4448e6c..b4671459857 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -266,7 +266,8 @@ IOMAP devm_ioremap() devm_ioremap_nocache() devm_iounmap() - devm_request_and_ioremap() : checks resource, requests region, ioremaps + devm_ioremap_resource() : checks resource, requests memory region, ioremaps + devm_request_and_ioremap() : obsoleted by devm_ioremap_resource() pcim_iomap() pcim_iounmap() pcim_iomap_table() : array of mapped addresses indexed by BAR -- cgit v1.2.3-18-g5258