This is a note to let you know that I've just added the patch titled MIPS: ip22: Fix ip28 build for modern gcc to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mips-ip22-fix-ip28-build-for-modern-gcc.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 23ca9b522383d3b9b7991d8586db30118992af4a Mon Sep 17 00:00:00 2001 From: Arnd Bergmann <arnd@xxxxxxxx> Date: Tue, 17 Jan 2017 16:18:46 +0100 Subject: MIPS: ip22: Fix ip28 build for modern gcc From: Arnd Bergmann <arnd@xxxxxxxx> 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@xxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Patchwork: https://patchwork.linux-mips.org/patch/15049/ Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/sgi-ip22/Platform | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- 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 Patches currently in stable-queue which might be from arnd@xxxxxxxx are queue-4.9/mips-ip27-disable-qlge-driver-in-defconfig.patch queue-4.9/bcm63xx_enet-avoid-uninitialized-variable-warning.patch queue-4.9/mips-update-ip27_defconfig-for-scsi_dh-change.patch queue-4.9/mtd-pmcmsp-use-kstrndup-instead-of-kmalloc-strncpy.patch queue-4.9/cpmac-remove-hopeless-warning.patch queue-4.9/mips-vdso-avoid-duplicate-cac_base-definition.patch queue-4.9/mips-ip22-fix-ip28-build-for-modern-gcc.patch queue-4.9/mips-update-lemote2f_defconfig-for-cpu_freq_stat-change.patch queue-4.9/crypto-improve-gcc-optimization-flags-for-serpent-and-wp512.patch queue-4.9/mips-ralink-remove-unused-rt-_wdt_reset-functions.patch queue-4.9/mips-ralink-remove-unused-timer-functions.patch queue-4.9/mips-update-defconfigs-for-nf_ct_proto_dccp-udplite-change.patch