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From: Mark Rutland <mark.rutland@arm.com>
To: linux-kernel@vger.kernel.org
Cc: acme@redhat.com, ardb@kernel.org, bp@alien8.de,
	broonie@kernel.org, catalin.marinas@arm.com,
	dave.hansen@linux.intel.com, jpoimboe@redhat.com, jslaby@suse.cz,
	linux-arm-kernel@lists.infradead.org, linux@armlinux.org.uk,
	mark.rutland@arm.com, mingo@redhat.com, peterz@infradead.org,
	tglx@linutronix.de, will@kernel.org
Subject: [PATCH v2 6/7] linkage: remove SYM_FUNC_{START,END}_ALIAS()
Date: Tue, 25 Jan 2022 11:31:59 +0000	[thread overview]
Message-ID: <20220125113200.3829108-7-mark.rutland@arm.com> (raw)
In-Reply-To: <20220125113200.3829108-1-mark.rutland@arm.com>

Now that all aliases are defined using SYM_FUNC_ALIAS(), remove the old
SYM_FUNC_{START,END}_ALIAS() macros.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
---
 Documentation/asm-annotations.rst | 13 -------------
 include/linux/linkage.h           | 30 ------------------------------
 2 files changed, 43 deletions(-)

diff --git a/Documentation/asm-annotations.rst b/Documentation/asm-annotations.rst
index 4868b58c60fb1..a64f2ca469d45 100644
--- a/Documentation/asm-annotations.rst
+++ b/Documentation/asm-annotations.rst
@@ -142,19 +142,6 @@ denoting a range of code via ``SYM_*_START/END`` annotations.
   result, except the debug information for the instructions is generated to
   the object file only once -- for the non-``ALIAS`` case.
 
-* ``SYM_FUNC_START_ALIAS`` and ``SYM_FUNC_START_LOCAL_ALIAS`` are deprecated
-    ways to define two or more names for one function. The typical use is::
-
-    SYM_FUNC_START_ALIAS(__memset)
-    SYM_FUNC_START(memset)
-        ... asm insns ...
-    SYM_FUNC_END(memset)
-    SYM_FUNC_END_ALIAS(__memset)
-
-  In this example, one can call ``__memset`` or ``memset`` with the same
-  result, except the debug information for the instructions is generated to
-  the object file only once -- for the non-``ALIAS`` case.
-
 * ``SYM_CODE_START`` and ``SYM_CODE_START_LOCAL`` should be used only in
   special cases -- if you know what you are doing. This is used exclusively
   for interrupt handlers and similar where the calling convention is not the C
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index becd64e9e5b18..960d9a032861e 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -220,30 +220,8 @@
 	SYM_ENTRY(name, linkage, SYM_A_NONE)
 #endif
 
-/*
- * SYM_FUNC_START_LOCAL_ALIAS -- use where there are two local names for one
- * function
- */
-#ifndef SYM_FUNC_START_LOCAL_ALIAS
-#define SYM_FUNC_START_LOCAL_ALIAS(name)		\
-	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
-#endif
-
-/*
- * SYM_FUNC_START_ALIAS -- use where there are two global names for one
- * function
- */
-#ifndef SYM_FUNC_START_ALIAS
-#define SYM_FUNC_START_ALIAS(name)			\
-	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
-#endif
-
 /* SYM_FUNC_START -- use for global functions */
 #ifndef SYM_FUNC_START
-/*
- * The same as SYM_FUNC_START_ALIAS, but we will need to distinguish these two
- * later.
- */
 #define SYM_FUNC_START(name)				\
 	SYM_START(name, SYM_L_GLOBAL, SYM_A_ALIGN)
 #endif
@@ -256,7 +234,6 @@
 
 /* SYM_FUNC_START_LOCAL -- use for local functions */
 #ifndef SYM_FUNC_START_LOCAL
-/* the same as SYM_FUNC_START_LOCAL_ALIAS, see comment near SYM_FUNC_START */
 #define SYM_FUNC_START_LOCAL(name)			\
 	SYM_START(name, SYM_L_LOCAL, SYM_A_ALIGN)
 #endif
@@ -279,18 +256,11 @@
 	SYM_START(name, SYM_L_WEAK, SYM_A_NONE)
 #endif
 
-/* SYM_FUNC_END_ALIAS -- the end of LOCAL_ALIASed or ALIASed function */
-#ifndef SYM_FUNC_END_ALIAS
-#define SYM_FUNC_END_ALIAS(name)			\
-	SYM_END(name, SYM_T_FUNC)
-#endif
-
 /*
  * SYM_FUNC_END -- the end of SYM_FUNC_START_LOCAL, SYM_FUNC_START,
  * SYM_FUNC_START_WEAK, ...
  */
 #ifndef SYM_FUNC_END
-/* the same as SYM_FUNC_END_ALIAS, see comment near SYM_FUNC_START */
 #define SYM_FUNC_END(name)				\
 	SYM_END(name, SYM_T_FUNC)
 #endif
-- 
2.30.2


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  parent reply	other threads:[~2022-01-25 11:35 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25 11:31 [PATCH v2 0/7] linkage: better symbol aliasing Mark Rutland
2022-01-25 11:31 ` [PATCH v2 1/7] arm: lib: remove leading whitespace in bitop macro Mark Rutland
2022-01-25 11:31 ` [PATCH v2 2/7] linkage: add SYM_{ENTRY,START,END}_AT() Mark Rutland
2022-02-10 14:52   ` Mark Rutland
2022-02-11  1:20     ` Nick Desaulniers
2022-02-11 11:32       ` Mark Rutland
2022-02-11 13:24         ` Mark Rutland
2022-01-25 11:31 ` [PATCH v2 3/7] linkage: add SYM_FUNC_ALIAS{,_LOCAL,_WEAK}() Mark Rutland
2022-01-25 11:31 ` [PATCH v2 4/7] arm64: clean up symbol aliasing Mark Rutland
2022-01-25 11:31 ` [PATCH v2 5/7] x86: " Mark Rutland
2022-01-25 11:31 ` Mark Rutland [this message]
2022-01-25 11:32 ` [PATCH v2 7/7] tools: update x86 string routines Mark Rutland
2022-01-25 15:28 ` [PATCH v2 0/7] linkage: better symbol aliasing Ard Biesheuvel
2022-01-25 15:45   ` Mark Rutland
2022-01-25 15:49     ` Ard Biesheuvel
2022-01-25 15:58       ` Mark Rutland

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