+ gcov-remove-support-for-gcc-49.patch added to -mm tree

+ gcov-remove-support-for-gcc-49.patch added to -mm tree

[akpm]

The patch titled
     Subject: gcov: remove support for GCC < 4.9
has been added to the -mm tree.  Its filename is
     gcov-remove-support-for-gcc-49.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/gcov-remove-support-for-gcc-49.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/gcov-remove-support-for-gcc-49.patch

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------------------------------------------------------
From: Nick Desaulniers <ndesaulniers@google.com>
Subject: gcov: remove support for GCC < 4.9

Since commit 0bddd227f3dc ("Documentation: update for gcc 4.9
requirement") the minimum supported version of GCC is gcc-4.9.  It's now
safe to remove this code.

Similar to commit 10415533a906 ("gcov: Remove old GCC 3.4 support") but
that was for GCC 4.8 and this is for GCC 4.9.

Link: https://github.com/ClangBuiltLinux/linux/issues/427
Link: https://lkml.kernel.org/r/20201111030557.2015680-1-ndesaulniers@google.com
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/gcov/gcc_4_7.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/kernel/gcov/gcc_4_7.c~gcov-remove-support-for-gcc-49
+++ a/kernel/gcov/gcc_4_7.c
@@ -25,10 +25,8 @@
 #define GCOV_COUNTERS			9
 #elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
 #define GCOV_COUNTERS			10
-#elif __GNUC__ == 4 && __GNUC_MINOR__ >= 9
-#define GCOV_COUNTERS			9
 #else
-#define GCOV_COUNTERS			8
+#define GCOV_COUNTERS			9
 #endif
 
 #define GCOV_TAG_FUNCTION_LENGTH	3
_

Patches currently in -mm which might be from ndesaulniers@google.com are

gcov-remove-support-for-gcc-49.patch
compiler-clang-remove-version-check-for-bpf-tracing.patch