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ee098e1aed
We did try trimming whitespace surrounding the 'model name' field in /proc/cpuinfo since reportedly some userspace uses it in string comparisons and there were discrepancies: [thetango@prarit ~]# grep "^model name" /proc/cpuinfo | uniq -c | sed 's/\ /_/g' ______1_model_name :_AMD_Opteron(TM)_Processor_6272 _____63_model_name :_AMD_Opteron(TM)_Processor_6272_________________ However, there were issues with overlapping buffers, string sizes and non-byte-sized copies in the previous proposed solutions; see Link tags below for the whole farce. So, instead of diddling with this more, let's simply extend what was there originally with trimming any present trailing whitespace. Final result is really simple and obvious. Testing with the most insane model IDs qemu can generate, looks good: .model_id = " My funny model ID CPU ", ______4_model_name :_My_funny_model_ID_CPU .model_id = "My funny model ID CPU ", ______4_model_name :_My_funny_model_ID_CPU .model_id = " My funny model ID CPU", ______4_model_name :_My_funny_model_ID_CPU .model_id = " ", ______4_model_name :__ .model_id = "", ______4_model_name :_15/02 Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1432050210-32036-1-git-send-email-prarit@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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