DepSurf

Function: optimize_nops

Status

Regular

• In 4.4: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81035fbf)
  Location: arch/x86/kernel/alternative.c:339
  Inline: True
  Inline callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

• In 4.8: Full Inline ⚠️

  Collision: Unique Static

  Inline: Full

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff810351af)
  Location: arch/x86/kernel/alternative.c:340
  Inline: True
  Inline callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

• In 4.10: ✅

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81034cd0)
  Location: arch/x86/kernel/alternative.c:344
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81034cd0-ffffffff81034d93: optimize_nops (STB_LOCAL)
  

• In 4.13: ✅

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81032d00)
  Location: arch/x86/kernel/alternative.c:344
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81032d00-ffffffff81032dbc: optimize_nops (STB_LOCAL)
  

• In 4.15: ✅

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81035050)
  Location: arch/x86/kernel/alternative.c:333
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81035050-ffffffff8103512f: optimize_nops (STB_LOCAL)
  

• In 4.18: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:333
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff810361d0-ffffffff81036263: optimize_nops.isra.5 (STB_LOCAL)
  ffffffff81036e12-ffffffff81036e64: optimize_nops.isra.5.cold.7 (STB_LOCAL)
  

• In 5.0: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:337
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff810373c0-ffffffff81037453: optimize_nops.isra.5 (STB_LOCAL)
  ffffffff81038022-ffffffff81038074: optimize_nops.isra.5.cold.6 (STB_LOCAL)
  

• In 5.3: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81039670-ffffffff81039700: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8103a538-ffffffff8103a588: optimize_nops.isra.0.cold (STB_LOCAL)
  

• In 5.4: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81039e40-ffffffff81039ed0: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8103ad18-ffffffff8103ad68: optimize_nops.isra.0.cold (STB_LOCAL)
  

• In 5.8: Transformation ⚠️

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff8103cab0-ffffffff8103cb3c: optimize_nops (STB_LOCAL)
  ffffffff8103d99c-ffffffff8103d9ee: optimize_nops.cold (STB_LOCAL)
  

• In 5.11: Transformation ⚠️

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:344
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff8103cf70-ffffffff8103cffc: optimize_nops (STB_LOCAL)
  ffffffff81bd3ec2-ffffffff81bd3f14: optimize_nops.cold (STB_LOCAL)
  

• In 5.13: Transformation ⚠️

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:224
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff8103eef0-ffffffff8103f05f: optimize_nops (STB_LOCAL)
  ffffffff81bc6396-ffffffff81bc63f5: optimize_nops.cold (STB_LOCAL)
  

• In 5.15: Transformation ⚠️

  void optimize_nops(struct alt_instr *a, u8 *instr);
  

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:224
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81044c90-ffffffff81044dff: optimize_nops (STB_LOCAL)
  ffffffff81c993c6-ffffffff81c99425: optimize_nops.cold (STB_LOCAL)
  

• In 5.19: Transformation ⚠️

  void optimize_nops(u8 *instr, size_t len);
  

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:228
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_retpolines
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff8104c940-ffffffff8104cbb8: optimize_nops (STB_LOCAL)
  ffffffff81e489b6-ffffffff81e48a32: optimize_nops.cold (STB_LOCAL)
  

• In 6.2: ✅

  void optimize_nops(u8 *instr, size_t len);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81058cb0)
  Location: arch/x86/kernel/alternative.c:229
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_retpolines
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81058cb0-ffffffff81058fbe: optimize_nops (STB_LOCAL)
  

• In 6.5: ✅

  void optimize_nops(u8 *instr, size_t len);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81059fb0)
  Location: arch/x86/kernel/alternative.c:242
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_retpolines
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81059fb0-ffffffff8105a0a8: optimize_nops (STB_LOCAL)
  

• In 6.8: ✅

  void optimize_nops(u8 *instr, size_t len);
  

  Collision: Unique Static

  Inline: No

  Transformation: False

  Instances:

  In arch/x86/kernel/alternative.c (ffffffff81061120)
  Location: arch/x86/kernel/alternative.c:242
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_retpolines
    - arch/x86/kernel/alternative.c:optimize_nops_inplace
  

  Symbols:

  ffffffff81061120-ffffffff81061218: optimize_nops (STB_LOCAL)
  

Arch

• In arm64: Absent ⚠️
• In armhf: Absent ⚠️
• In ppc64el: Absent ⚠️
• In riscv64: Absent ⚠️

Flavor

• In aws: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81039fa0-ffffffff8103a030: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8103ae78-ffffffff8103aec8: optimize_nops.isra.0.cold (STB_LOCAL)
  

• In azure: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81029890-ffffffff8102990c: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8102a688-ffffffff8102a6d8: optimize_nops.isra.0.cold (STB_LOCAL)
  

• In gcp: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff81039e00-ffffffff81039e90: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8103acd8-ffffffff8103ad28: optimize_nops.isra.0.cold (STB_LOCAL)
  

• In lowlatency: Transformation ⚠️

  Collision: Unique Static

  Inline: No

  Transformation: True

  Instances:

  In arch/x86/kernel/alternative.c (0)
  Location: arch/x86/kernel/alternative.c:341
  Inline: False
  Direct callers:
    - arch/x86/kernel/alternative.c:apply_alternatives
  

  Symbols:

  ffffffff8103ae00-ffffffff8103ae90: optimize_nops.isra.0 (STB_LOCAL)
  ffffffff8103bcd8-ffffffff8103bd28: optimize_nops.isra.0.cold (STB_LOCAL)
  

Differences

Regular

• No changes between 4.10 and 4.13 ✅
• No changes between 4.13 and 4.15 ✅
• No changes between 5.8 and 5.11 ✅
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Param added. size_t len
  • Param removed. struct alt_instr *a
  • Param reordered. a, instr ➡️ instr, len
• No changes between 5.19 and 6.2 ✅
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅