[xen master] build: correct usage comments in Kbuild.include

[patchbot@xxxxxxx]

commit 6bce8cc00594f41830739b76e367423fd4e7444d
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Thu Jan 13 14:32:34 2022 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Jan 13 14:32:34 2022 +0100

    build: correct usage comments in Kbuild.include
    
    Macros with arguments need to be invoked via $(call ...); don't misguide
    people looking up usage of such macros.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
 xen/scripts/Kbuild.include | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/scripts/Kbuild.include b/xen/scripts/Kbuild.include
index 83c7e1457b..f75d724ed7 100644
--- a/xen/scripts/Kbuild.include
+++ b/xen/scripts/Kbuild.include
@@ -43,15 +43,15 @@ define as-option-add-closure
     endif
 endef
 
-# $(if-success,<command>,<then>,<else>)
+# $(call if-success,<command>,<then>,<else>)
 # Return <then> if <command> exits with 0, <else> otherwise.
 if-success = $(shell { $(1); } >/dev/null 2>&1 && echo "$(2)" || echo "$(3)")
 
-# $(success,<command>)
+# $(call success,<command>)
 # Return y if <command> exits with 0, n otherwise
 success = $(call if-success,$(1),y,n)
 
-# $(ld-option,<flag>)
+# $(call ld-option,<flag>)
 # Return y if the linker supports <flag>, n otherwise
 ld-option = $(call success,$(LD) -v $(1))
 
--
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