[SRU][jammy:linux-aws][PATCH 0/1] arm64: pauth: don't sign leaf functions

[Kevin Becker]

BugLink: https://bugs.launchpad.net/bugs/2043811

[Impact]

Amazon sent the following request: From our experiments, we found that not 
signing leaf functions on AWS arm64 Graviton instances helps improve 
application performance. We would like to have the patch 
https://github.com/torvalds/linux/commit/c68cf5285e1896a2b725ec01a1351f08610165b8 
backported to Ubuntu 5.15 AWS kernels. We saw some of these performance 
improvements: NGINX 1%, MySQL 2%, PyTorch 2%

[Test Plan]

Amazon has tested on AWS.

[Regression Potential]

Arm64 binaries may not work correctly.

[Other Info]

SF: #00372369

Kevin Becker (1):
  arm64: pauth: don't sign leaf functions

 arch/arm64/Makefile | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

-- 
2.40.1