| From | Jiri Slaby <> | Subject | [PATCH 3.12 009/142] MIPS: ip22: Fix ip28 build for modern gcc | Date | Mon, 10 Apr 2017 17:31:30 +0200 |
| |
From: Arnd Bergmann <arnd@arndb.de>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
commit 23ca9b522383d3b9b7991d8586db30118992af4a upstream.
kernelci reports a failure of the ip28_defconfig build after upgrading its gcc version:
arch/mips/sgi-ip22/Platform:29: *** gcc doesn't support needed option -mr10k-cache-barrier=store. Stop.
The problem apparently is that the -mr10k-cache-barrier=store option is now rejected for CPUs other than r10k. Explicitly including the CPU in the check fixes this and is safe because both options were introduced in gcc-4.4.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/15049/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Jiri Slaby <jslaby@suse.cz> --- arch/mips/sgi-ip22/Platform | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/sgi-ip22/Platform b/arch/mips/sgi-ip22/Platform index b7a4b7e04c38..e8f6b3a42a48 100644 --- a/arch/mips/sgi-ip22/Platform +++ b/arch/mips/sgi-ip22/Platform @@ -25,7 +25,7 @@ endif # Simplified: what IP22 does at 128MB+ in ksegN, IP28 does at 512MB+ in xkphys # ifdef CONFIG_SGI_IP28 - ifeq ($(call cc-option-yn,-mr10k-cache-barrier=store), n) + ifeq ($(call cc-option-yn,-march=r10000 -mr10k-cache-barrier=store), n) $(error gcc doesn't support needed option -mr10k-cache-barrier=store) endif endif -- 2.12.2
|