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tracing/scripts: Possible uninitialized variable

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The 0day bot discovered a possible uninitialized path in the
 scripts that sort the mcount sections at build time. Just needed
 to initialize that variable.
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Merge tag 'trace-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "tracing/scripts: Possible uninitialized variable

  The 0day bot discovered a possible uninitialized path in the scripts
  that sort the mcount sections at build time. Just needed to initialize
  that variable"

* tag 'trace-v5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  script/sorttable: Fix some initialization problems
This commit is contained in:
Linus Torvalds 2022-01-19 11:44:34 +02:00
commit e9f5cbc0c8
1 changed files with 3 additions and 2 deletions
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5
scripts/sorttable.h
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@ -199,6 +199,8 @@ static int compare_extable(const void *a, const void *b)
return 0;
}
#ifdef MCOUNT_SORT_ENABLED
pthread_t mcount_sort_thread;
struct elf_mcount_loc {
Elf_Ehdr *ehdr;
Elf_Shdr *init_data_sec;
@ -282,10 +284,9 @@ static int do_sort(Elf_Ehdr *ehdr,
unsigned int shnum;
unsigned int shstrndx;
#ifdef MCOUNT_SORT_ENABLED
struct elf_mcount_loc mstruct;
struct elf_mcount_loc mstruct = {0};
uint_t _start_mcount_loc = 0;
uint_t _stop_mcount_loc = 0;
pthread_t mcount_sort_thread;
#endif
#if defined(SORTTABLE_64) && defined(UNWINDER_ORC_ENABLED)
unsigned int orc_ip_size = 0;