linux-kernel - [PATCH 4.19 092/148] powerpc: remove old GCC version checks

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Message-Id: <20190111131117.876608934@linuxfoundation.org>
Date:   Fri, 11 Jan 2019 15:14:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Nicholas Piggin <npiggin@...il.com>,
        Joel Stanley <joel@....id.au>,
        Michael Ellerman <mpe@...erman.id.au>,
        Nathan Chancellor <natechancellor@...il.com>
Subject: [PATCH 4.19 092/148] powerpc: remove old GCC version checks

4.19-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicholas Piggin <npiggin@...il.com>

commit f2910f0e6835339e6ce82cef22fa15718b7e3bfa upstream.

GCC 4.6 is the minimum supported now.

Signed-off-by: Nicholas Piggin <npiggin@...il.com>
Reviewed-by: Joel Stanley <joel@....id.au>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
[nc: Applied to minimize unnecessary conflicts]
Signed-off-by: Nathan Chancellor <natechancellor@...il.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/powerpc/Makefile |   31 ++-----------------------------
 1 file changed, 2 insertions(+), 29 deletions(-)

--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -408,36 +408,9 @@ archprepare: checkbin
 # to stdout and these checks are run even on install targets.
 TOUT	:= .tmp_gas_check
 
-# Check gcc and binutils versions:
-# - gcc-3.4 and binutils-2.14 are a fatal combination
-# - Require gcc 4.0 or above on 64-bit
-# - gcc-4.2.0 has issues compiling modules on 64-bit
+# Check toolchain versions:
+# - gcc-4.6 is the minimum kernel-wide version so nothing required.
 checkbin:
-	@if test "$(cc-name)" != "clang" \
-	    && test "$(cc-version)" = "0304" ; then \
-		if ! /bin/echo mftb 5 | $(AS) -v -mppc -many -o $(TOUT) >/dev/null 2>&1 ; then \
-			echo -n '*** ${VERSION}.${PATCHLEVEL} kernels no longer build '; \
-			echo 'correctly with gcc-3.4 and your version of binutils.'; \
-			echo '*** Please upgrade your binutils or downgrade your gcc'; \
-			false; \
-		fi ; \
-	fi
-	@if test "$(cc-name)" != "clang" \
-	    && test "$(cc-version)" -lt "0400" \
-	    && test "x${CONFIG_PPC64}" = "xy" ; then \
-                echo -n "Sorry, GCC v4.0 or above is required to build " ; \
-                echo "the 64-bit powerpc kernel." ; \
-                false ; \
-        fi
-	@if test "$(cc-name)" != "clang" \
-	    && test "$(cc-fullversion)" = "040200" \
-	    && test "x${CONFIG_MODULES}${CONFIG_PPC64}" = "xyy" ; then \
-		echo -n '*** GCC-4.2.0 cannot compile the 64-bit powerpc ' ; \
-		echo 'kernel with modules enabled.' ; \
-		echo -n '*** Please use a different GCC version or ' ; \
-		echo 'disable kernel modules' ; \
-		false ; \
-	fi
 	@if test "x${CONFIG_CPU_LITTLE_ENDIAN}" = "xy" \
 	    && $(LD) --version | head -1 | grep ' 2\.24$$' >/dev/null ; then \
 		echo -n '*** binutils 2.24 miscompiles weak symbols ' ; \