[tip: perf/urgent] alpha: add simd_enabled argument to perf_reg_validate()

[tip-bot2 for Thomas Weißschuh]

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     2b774b5bbffabae7ac6be98a98e9641fb3c0bbb4
Gitweb:        https://git.kernel.org/tip/2b774b5bbffabae7ac6be98a98e9641fb3c0bbb4
Author:        Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
AuthorDate:    Wed, 21 Oct 2026 10:18:22 +02:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Wed, 21 Oct 2026 17:42:37 +02:00

alpha: add simd_enabled argument to perf_reg_validate()

Align the alpha function with the generic function signature.
The alpha function was added in commit 9280e99d87dd ("alpha: add
HAVE_PERF_REGS and HAVE_PERF_USER_STACK_DUMP support") while the
generic function signature was changed in commit a2c64c74c029 ("perf:
Enhance perf_reg_validate() with simd_enabled argument").

After both commits landed in Linus' tree the signatures now differ,
resulting in a build error:

arch/alpha/kernel/perf_regs.c:46:5: error: conflicting types for 'perf_reg_validate'; have 'int(u64)' {aka 'int(long long unsigned int)'}
   46 | int perf_reg_validate(u64 mask)
      |     ^~~~~~~~~~~~~~~~~
In file included from include/linux/perf_event.h:50,
                 from arch/alpha/kernel/perf_regs.c:4:
include/linux/perf_regs.h:13:5: note: previous declaration of 'perf_reg_validate' with type 'int(u64,  bool)' {aka 'int(long long unsigned int,  _Bool)'}
   13 | int perf_reg_validate(u64 mask, bool simd_enabled);
      |     ^~~~~~~~~~~~~~~~~

Add the missing argument.

Fixes: 742f62b63904 ("Merge tag 'alpha-for-v7.4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Magnus Lindholm <linmag7@xxxxxxxxx>
Tested-by: Magnus Lindholm <linmag7@xxxxxxxxx>
Link: https://patch.msgid.link/20261021-alpha-perf_reg_validate-v1-1-a8e8cc23ea7a@xxxxxxxxxxxxx
---
 arch/alpha/kernel/perf_regs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/kernel/perf_regs.c b/arch/alpha/kernel/perf_regs.c
index 33ea2e8..c5a55bf 100644
--- a/arch/alpha/kernel/perf_regs.c
+++ b/arch/alpha/kernel/perf_regs.c
@@ -43,7 +43,7 @@ u64 perf_reg_value(struct pt_regs *regs, int idx)
 	return *(unsigned long *)((void *)regs + pt_regs_offset[idx]);
 }
 
-int perf_reg_validate(u64 mask)
+int perf_reg_validate(u64 mask, bool simd_enabled)
 {
 	if (!mask || mask & REG_RESERVED)
 		return -EINVAL;