user/sven/linux.git/drivers/ras, branch v5.10.82

RAS/CEC: Correct ce_add_elem()'s returned values

2021-04-14T06:42:12Z

commit 3a62583c2853b0ab37a57dde79decea210b5fb89 upstream. ce_add_elem() uses different return values to signal a result from adding an element to the collector. Commit in Fixes: broke the case where the element being added is not found in the array. Correct that. [ bp: Rewrite commit message, add kernel-doc comments. ] Fixes: de0e0624d86f ("RAS/CEC: Check count_threshold unconditionally") Signed-off-by: William Roche Signed-off-by: Borislav Petkov Cc: Link: https://lkml.kernel.org/r/1617722939-29670-1-git-send-email-william.roche@oracle.com Signed-off-by: Greg Kroah-Hartman

RAS/CEC: Convert to DEFINE_SHOW_ATTRIBUTE()

2020-09-25T17:05:31Z

Use the DEFINE_SHOW_ATTRIBUTE() macro and simplify the code. Signed-off-by: Qinglang Miao Signed-off-by: Borislav Petkov Link: https://lkml.kernel.org/r/20200919012252.171437-1-miaoqinglang@huawei.com

RAS/CEC: Fix cec_init() prototype

2020-08-20T08:33:33Z

late_initcall() expects a function that returns an integer. Update the function signature to match. [ bp: Massage commit message into proper sentences. ] Fixes: 9554bfe403bd ("x86/mce: Convert the CEC to use the MCE notifier") Signed-off-by: Luca Stefani Signed-off-by: Borislav Petkov Reviewed-by: Sami Tolvanen Tested-by: Sami Tolvanen Link: https://lkml.kernel.org/r/20200805095708.83939-1-luca.stefani.ge1@gmail.com

x86/mce: Fix all mce notifiers to update the mce->kflags bitmask

2020-04-14T13:59:26Z

If the handler took any action to log or deal with the error, set a bit in mce->kflags so that the default handler on the end of the machine check chain can see what has been done. Get rid of NOTIFY_STOP returns. Make the EDAC and dev-mcelog handlers skip over errors already processed by CEC. Signed-off-by: Tony Luck Signed-off-by: Borislav Petkov Tested-by: Tony Luck Link: https://lkml.kernel.org/r/20200214222720.13168-5-tony.luck@intel.com

x86/mce: Convert the CEC to use the MCE notifier

2020-04-14T13:58:08Z

The CEC code has its claws in a couple of routines in mce/core.c. Convert it to just register itself on the normal MCE notifier chain. [ bp: Make cec_add_elem() and cec_init() static. ] Signed-off-by: Tony Luck Signed-off-by: Borislav Petkov Tested-by: Tony Luck Link: https://lkml.kernel.org/r/20200214222720.13168-3-tony.luck@intel.com

RAS: Build debugfs.o only when enabled in Kconfig

2019-08-08T15:44:02Z

In addition, the 0day bot reported this build error: >> drivers/ras/debugfs.c:10:5: error: redefinition of 'ras_userspace_consumers' int ras_userspace_consumers(void) ^~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/ras/debugfs.c:3:0: include/linux/ras.h:14:19: note: previous definition of 'ras_userspace_consumers' was here static inline int ras_userspace_consumers(void) { return 0; } ^~~~~~~~~~~~~~~~~~~~~~~ for a riscv-specific .config where CONFIG_DEBUG_FS is not set. Fix all that by making debugfs.o depend on that define. [ bp: Rewrite commit message. ] Reported-by: kbuild test robot Signed-off-by: Valdis Kletnieks Signed-off-by: Borislav Petkov Cc: Tony Luck Cc: linux-edac@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/7053.1565218556@turing-police

RAS: Fix prototype warnings

2019-08-08T15:39:57Z

When building with C=2 and/or W=1, legitimate warnings are issued about missing prototypes: CHECK drivers/ras/debugfs.c drivers/ras/debugfs.c:4:15: warning: symbol 'ras_debugfs_dir' was not declared. Should it be static? drivers/ras/debugfs.c:8:5: warning: symbol 'ras_userspace_consumers' was not declared. Should it be static? drivers/ras/debugfs.c:38:12: warning: symbol 'ras_add_daemon_trace' was not declared. Should it be static? drivers/ras/debugfs.c:54:13: warning: symbol 'ras_debugfs_init' was not declared. Should it be static? CC drivers/ras/debugfs.o drivers/ras/debugfs.c:8:5: warning: no previous prototype for 'ras_userspace_consumers' [-Wmissing-prototypes] 8 | int ras_userspace_consumers(void) | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/ras/debugfs.c:38:12: warning: no previous prototype for 'ras_add_daemon_trace' [-Wmissing-prototypes] 38 | int __init ras_add_daemon_trace(void) | ^~~~~~~~~~~~~~~~~~~~ drivers/ras/debugfs.c:54:13: warning: no previous prototype for 'ras_debugfs_init' [-Wmissing-prototypes] 54 | void __init ras_debugfs_init(void) | ^~~~~~~~~~~~~~~~ Provide the proper includes. [ bp: Take care of the same warnings for cec.c too. ] Signed-off-by: Valdis Kletnieks Signed-off-by: Borislav Petkov Cc: Tony Luck Cc: linux-edac@vger.kernel.org Cc: x86@kernel.org Link: http://lkml.kernel.org/r/7168.1565218769@turing-police

RAS/CEC: Add copyright

2019-06-08T15:40:28Z

Signed-off-by: Borislav Petkov

RAS/CEC: Add CONFIG_RAS_CEC_DEBUG and move CEC debug features there

2019-06-08T15:39:24Z

The pfn and array files in (debugfs)/ras/cec are intended for debugging the CEC code itself. They are not needed on production systems, so the default setting for this CONFIG option is "n". [ bp: Have it with less ifdeffery by using IS_ENABLED(). ] Signed-off-by: Tony Luck Signed-off-by: Borislav Petkov

RAS/CEC: Dump the different array element sections

2019-06-08T15:39:11Z

When dumping the array elements, print them in the following format: [ PFN | generation in binary | count ] to be perfectly clear what all those sections are. Signed-off-by: Borislav Petkov Cc: Tony Luck Cc: linux-edac