linux-kernel - [PATCH v2 4/4] ARM: configs: stm32: Remove useless flags in STM32 defconfig

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Message-ID: <20241220125506.3157268-5-patrice.chotard@foss.st.com>
Date: Fri, 20 Dec 2024 13:55:06 +0100
From: <patrice.chotard@...s.st.com>
To: Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
        Alexandre
 Torgue <alexandre.torgue@...s.st.com>,
        Russell King <linux@...linux.org.uk>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Petr Mladek <pmladek@...e.com>, Yoann Congal <yoann.congal@...le.fr>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>, <soc@...nel.org>,
        Patrice Chotard
	<patrice.chotard@...s.st.com>
Subject: [PATCH v2 4/4] ARM: configs: stm32: Remove useless flags in STM32 defconfig

From: Patrice Chotard <patrice.chotard@...s.st.com>

As stm32_defconfig is dedicated to STM32 MCUs, disable
CONFIG_COMMON_CLK_STM32MP flag which is only used by STM32 MPUs.

Disable CONFIG_SUSPEND, CONFIG_ADVISE_SYSCALLS, CONFIG_IO_URING
CONFIG_POSIX_TIMERS, CONFIG_GCC_PLUGINS, it will reduce the kernel
image size for these platforms which embed a low amount of memory.

Tested on STM32F746-DISCO board which embeds 8MB of memory.

Signed-off-by: Patrice Chotard <patrice.chotard@...s.st.com>
---
 arch/arm/configs/stm32_defconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/configs/stm32_defconfig b/arch/arm/configs/stm32_defconfig
index d62a0c0b7ce5..77048b5e1ec4 100644
--- a/arch/arm/configs/stm32_defconfig
+++ b/arch/arm/configs/stm32_defconfig
@@ -6,12 +6,15 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_CC_OPTIMIZE_FOR_SIZE=y
 CONFIG_EXPERT=y
 # CONFIG_UID16 is not set
+# CONFIG_POSIX_TIMERS is not set
 CONFIG_BASE_SMALL=y
 # CONFIG_FUTEX is not set
 # CONFIG_EPOLL is not set
 # CONFIG_SIGNALFD is not set
 # CONFIG_EVENTFD is not set
 # CONFIG_AIO is not set
+# CONFIG_IO_URING is not set
+# CONFIG_ADVISE_SYSCALLS is not set
 # CONFIG_MMU is not set
 CONFIG_ARCH_STM32=y
 CONFIG_CPU_V7M_NUM_IRQ=240
@@ -20,6 +23,8 @@ CONFIG_DRAM_BASE=0x90000000
 # CONFIG_ATAGS is not set
 CONFIG_XIP_KERNEL=y
 CONFIG_XIP_PHYS_ADDR=0x08008000
+# CONFIG_SUSPEND is not set
+# CONFIG_GCC_PLUGINS is not set
 CONFIG_BINFMT_FLAT=y
 # CONFIG_COREDUMP is not set
 # CONFIG_VM_EVENT_COUNTERS is not set
@@ -60,6 +65,7 @@ CONFIG_DMADEVICES=y
 CONFIG_STM32_DMA=y
 CONFIG_STM32_DMAMUX=y
 CONFIG_STM32_MDMA=y
+# CONFIG_COMMON_CLK_STM32MP is not set
 CONFIG_IIO=y
 CONFIG_STM32_ADC_CORE=y
 CONFIG_STM32_ADC=y
-- 
2.25.1