Eric Lee / linux-smarc-t335x-v3.2

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Commit bd89bb29a01503c5cffa367eccb0b356f910cb8d

Authored by Arjan van de Ven
Committed by Ingo Molnar
1 parent 74853dba2f
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

debug warnings: print the DMI board info name in a WARN/WARN_ON 

Impact: extend WARN_ON() output with DMI_PRODUCT_NAME

It's very useful for many low level WARN_ON's to find out which
motherboard has the broken BIOS etc... this patch adds a printk
to the WARN_ON code for this.

On architectures without DMI, gcc should optimize the code out.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

Showing 1 changed file with 6 additions and 0 deletions Side-by-side Diff

... ... @@ -21,6 +21,7 @@
21 21 #include <linux/debug_locks.h>
22 22 #include <linux/random.h>
23 23 #include <linux/kallsyms.h>
  24 +#include <linux/dmi.h>
24 25  
25 26 int panic_on_oops;
26 27 static unsigned long tainted_mask;
27 28  
... ... @@ -325,11 +326,16 @@
325 326 va_list args;
326 327 char function[KSYM_SYMBOL_LEN];
327 328 unsigned long caller = (unsigned long)__builtin_return_address(0);
  329 + const char *board;
  330 +
328 331 sprint_symbol(function, caller);
329 332  
330 333 printk(KERN_WARNING "------------[ cut here ]------------\n");
331 334 printk(KERN_WARNING "WARNING: at %s:%d %s()\n", file,
332 335 line, function);
  336 + board = dmi_get_system_info(DMI_PRODUCT_NAME);
  337 + if (board)
  338 + printk(KERN_WARNING "Hardware name: %s\n", board);
333 339  
334 340 if (fmt) {
335 341 va_start(args, fmt);