[PATCH] powerpc/pseries/vas: Don't print an error when VAS is unavailable
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2021-11-26 05:22:23
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
KVM does not support VAS so guests always print a useless error on boot
vas: HCALL(398) error -2, query_type 0, result buffer 0x57f2000
Change this to only print the message if the error is not H_FUNCTION.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/platforms/pseries/vas.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/vas.c b/arch/powerpc/platforms/pseries/vas.c
index b043e3936d21..734523e2272f 100644
--- a/arch/powerpc/platforms/pseries/vas.c
+++ b/arch/powerpc/platforms/pseries/vas.c@@ -151,8 +151,15 @@ int h_query_vas_capabilities(const u64 hcall, u8 query_type, u64 result) if (rc == H_SUCCESS) return 0; - pr_err("HCALL(%llx) error %ld, query_type %u, result buffer 0x%llx\n", - hcall, rc, query_type, result); + /* H_FUNCTION means HV does not support VAS so don't print an error */ + if (rc != H_FUNCTION) { + pr_err("%s error %ld, query_type %u, result buffer 0x%llx\n", + (hcall == H_QUERY_VAS_CAPABILITIES) ? + "H_QUERY_VAS_CAPABILITIES" : + "H_QUERY_NX_CAPABILITIES", + rc, query_type, result); + } + return -EIO; } EXPORT_SYMBOL_GPL(h_query_vas_capabilities);
--
2.23.0