Linus Torvalds d6a326d694 tracing: Remove second argument of __assign_str() ... The __assign_str() macro logic of the TRACE_EVENT() macro was optimized so that it no longer needs the second argument. The __assign_str() is always matched with __string() field that takes a field name and the source for that field: __string(field, source) The TRACE_EVENT() macro logic will save off the source value and then use that value to copy into the ring buffer via the __assign_str(). Before commit c1fa617cae ("tracing: Rework __assign_str() and __string() to not duplicate getting the string"), the __assign_str() needed the second argument which would perform the same logic as the __string() source parameter did. Not only would this add overhead, but it was error prone as if the __assign_str() source produced something different, it may not have allocated enough for the string in the ring buffer (as the __string() source was used to determine how much to allocate) Now that the __assign_str() just uses the same string that was used in __string() it no longer needs the source parameter. It can now be removed. -----BEGIN PGP SIGNATURE----- iIkEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCZk9RMBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qur+AP9jbSYaGhzZdJ7a3HGA8M4l6JNju8nC GcX1JpJT4z1qvgD3RkoNvP87etDAUAqmbVhVWnUHCY/vTqr9uB/gqmG6Ag== =Y+6f -----END PGP SIGNATURE----- Merge tag 'trace-assign-str-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing cleanup from Steven Rostedt: "Remove second argument of __assign_str() The __assign_str() macro logic of the TRACE_EVENT() macro was optimized so that it no longer needs the second argument. The __assign_str() is always matched with __string() field that takes a field name and the source for that field: __string(field, source) The TRACE_EVENT() macro logic will save off the source value and then use that value to copy into the ring buffer via the __assign_str(). Before commit c1fa617cae ("tracing: Rework __assign_str() and __string() to not duplicate getting the string"), the __assign_str() needed the second argument which would perform the same logic as the __string() source parameter did. Not only would this add overhead, but it was error prone as if the __assign_str() source produced something different, it may not have allocated enough for the string in the ring buffer (as the __string() source was used to determine how much to allocate) Now that the __assign_str() just uses the same string that was used in __string() it no longer needs the source parameter. It can now be removed" * tag 'trace-assign-str-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/treewide: Remove second parameter of __assign_str()		2024-05-23 12:28:01 -07:00
..
boot	TTY/Serial changes for 6.10-rc1	2024-05-22 11:53:02 -07:00
configs	USB / Thunderbolt changes for 6.10-rc1	2024-05-22 11:40:09 -07:00
crypto	crypto: arm64/aes-ce - Simplify round key load sequence	2024-04-26 17:26:09 +08:00
hyperv	x86/hyperv: Use Hyper-V entropy to seed guest random number generator	2024-03-18 22:01:52 +00:00
include	arm64 fixes for -rc1	2024-05-23 12:09:22 -07:00
kernel	tracing: Remove second argument of __assign_str()	2024-05-23 12:28:01 -07:00
kvm	Kbuild updates for v6.10	2024-05-18 12:39:20 -07:00
lib	arm64: crypto: use CC_FLAGS_FPU for NEON CFLAGS	2024-05-19 14:36:18 -07:00
mm	The usual shower of singleton fixes and minor series all over MM,	2024-05-19 09:21:03 -07:00
net	Modules changes for v6.10-rc1	2024-05-15 14:05:08 -07:00
tools	arm64: errata: Add workaround for Arm errata 3194386 and 3312417	2024-05-10 12:21:57 +01:00
xen
Kbuild
Kconfig	arm64 fixes for -rc1	2024-05-23 12:09:22 -07:00
Kconfig.debug
Kconfig.platforms	Updates for the interrupt subsystem:	2024-05-14 09:47:14 -07:00
Makefile	arm64: implement ARCH_HAS_KERNEL_FPU_SUPPORT	2024-05-19 14:36:18 -07:00