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Message-Id: <20230801173544.1929519-3-hch@lst.de>
Date: Tue, 1 Aug 2023 19:35:41 +0200
From: Christoph Hellwig <hch@....de>
To: Luis Chamberlain <mcgrof@...nel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Daniel Mack <daniel@...que.org>,
Haojian Zhuang <haojian.zhuang@...il.com>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
Ulf Hansson <ulf.hansson@...aro.org>,
Manuel Lauss <manuel.lauss@...il.com>,
Yangbo Lu <yangbo.lu@....com>, Joshua Kinard <kumba@...too.org>
Cc: Daniel Vetter <daniel.vetter@...ll.ch>,
Arnd Bergmann <arnd@...db.de>,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org (open list),
linux-mmc@...r.kernel.org, netdev@...r.kernel.org,
linux-rtc@...r.kernel.org, linux-modules@...r.kernel.org
Subject: [PATCH 2/5] mmc: au1xmmc: force non-modular build and remove symbol_get usage
au1xmmc is split somewhat awkwardly into the main mmc subsystem driver,
and callbacks in platform_data that sit under arch/mips/ and are
always built in. The latter than call mmc_detect_change through
symbol_get. Remove the use of symbol_get by requiring the driver
to be built in. In the future the interrupt handlers for card
insert/eject detection should probably be moved into the main driver,
and which point it can be built modular again.
Signed-off-by: Christoph Hellwig <hch@....de>
---
arch/mips/alchemy/devboards/db1000.c | 8 +-------
arch/mips/alchemy/devboards/db1200.c | 19 ++-----------------
arch/mips/alchemy/devboards/db1300.c | 10 +---------
drivers/mmc/host/Kconfig | 4 ++--
4 files changed, 6 insertions(+), 35 deletions(-)
diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c
index 79d66faa84828d..012da042d0a4f7 100644
--- a/arch/mips/alchemy/devboards/db1000.c
+++ b/arch/mips/alchemy/devboards/db1000.c
@@ -14,7 +14,6 @@
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mmc/host.h>
-#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/spi/spi.h>
@@ -167,12 +166,7 @@ static struct platform_device db1x00_audio_dev = {
static irqreturn_t db1100_mmc_cd(int irq, void *ptr)
{
- void (*mmc_cd)(struct mmc_host *, unsigned long);
- /* link against CONFIG_MMC=m */
- mmc_cd = symbol_get(mmc_detect_change);
- mmc_cd(ptr, msecs_to_jiffies(500));
- symbol_put(mmc_detect_change);
-
+ mmc_detect_change(ptr, msecs_to_jiffies(500));
return IRQ_HANDLED;
}
diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
index 1864eb935ca57f..76080c71a2a7b6 100644
--- a/arch/mips/alchemy/devboards/db1200.c
+++ b/arch/mips/alchemy/devboards/db1200.c
@@ -10,7 +10,6 @@
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/init.h>
-#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/leds.h>
@@ -340,14 +339,7 @@ static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
static irqreturn_t db1200_mmc_cdfn(int irq, void *ptr)
{
- void (*mmc_cd)(struct mmc_host *, unsigned long);
-
- /* link against CONFIG_MMC=m */
- mmc_cd = symbol_get(mmc_detect_change);
- if (mmc_cd) {
- mmc_cd(ptr, msecs_to_jiffies(200));
- symbol_put(mmc_detect_change);
- }
+ mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == DB1200_SD0_INSERT_INT)
@@ -431,14 +423,7 @@ static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
static irqreturn_t pb1200_mmc1_cdfn(int irq, void *ptr)
{
- void (*mmc_cd)(struct mmc_host *, unsigned long);
-
- /* link against CONFIG_MMC=m */
- mmc_cd = symbol_get(mmc_detect_change);
- if (mmc_cd) {
- mmc_cd(ptr, msecs_to_jiffies(200));
- symbol_put(mmc_detect_change);
- }
+ mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == PB1200_SD1_INSERT_INT)
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index e70e529ddd914d..ff61901329c626 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -17,7 +17,6 @@
#include <linux/interrupt.h>
#include <linux/ata_platform.h>
#include <linux/mmc/host.h>
-#include <linux/module.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/platnand.h>
#include <linux/platform_device.h>
@@ -459,14 +458,7 @@ static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
static irqreturn_t db1300_mmc_cdfn(int irq, void *ptr)
{
- void (*mmc_cd)(struct mmc_host *, unsigned long);
-
- /* link against CONFIG_MMC=m. We can only be called once MMC core has
- * initialized the controller, so symbol_get() should always succeed.
- */
- mmc_cd = symbol_get(mmc_detect_change);
- mmc_cd(ptr, msecs_to_jiffies(200));
- symbol_put(mmc_detect_change);
+ mmc_detect_change(ptr, msecs_to_jiffies(200));
msleep(100); /* debounce */
if (irq == DB1300_SD1_INSERT_INT)
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 159a3e9490aed8..f7afd179dd10bf 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -526,11 +526,11 @@ config MMC_ALCOR
of Alcor Micro PCI-E card reader
config MMC_AU1X
- tristate "Alchemy AU1XX0 MMC Card Interface support"
+ bool "Alchemy AU1XX0 MMC Card Interface support"
depends on MIPS_ALCHEMY
help
This selects the AMD Alchemy(R) Multimedia card interface.
- If you have a Alchemy platform with a MMC slot, say Y or M here.
+ If you have a Alchemy platform with a MMC slot, say Y here.
If unsure, say N.
--
2.39.2
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