Hi all, After merging the mfd tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/mfd/kempld-core.c: In function 'kempld_register_cells_generic': drivers/mfd/kempld-core.c:105:13: error: assignment of read-only location 'devs[i++]' 105 | devs[i++] = kempld_devs[KEMPLD_I2C]; | ^ drivers/mfd/kempld-core.c:108:13: error: assignment of read-only location 'devs[i++]' 108 | devs[i++] = kempld_devs[KEMPLD_WDT]; | ^ drivers/mfd/kempld-core.c:111:13: error: assignment of read-only location 'devs[i++]' 111 | devs[i++] = kempld_devs[KEMPLD_GPIO]; | ^ drivers/mfd/kempld-core.c:114:13: error: assignment of read-only location 'devs[i++]' 114 | devs[i++] = kempld_devs[KEMPLD_UART]; | ^ Caused by commit 70d48975c152 ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes") I have added the following fix patch for today (I assume that there is a better solution): From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Date: Fri, 17 Jul 2020 13:36:22 +1000 Subject: [PATCH] fix up for struct mfd_cell change Fixes: 70d48975c152 ("mfd: core: Make a best effort attempt to match devices with the correct of_nodes") Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> --- drivers/mfd/kempld-core.c | 28 ++++++++++------------------ 1 file changed, 10 insertions(+), 18 deletions(-) diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c index f48e21d8b97c..ad68ee699cb5 100644 --- a/drivers/mfd/kempld-core.c +++ b/drivers/mfd/kempld-core.c @@ -79,39 +79,31 @@ enum kempld_cells { KEMPLD_UART, }; -static const struct mfd_cell kempld_devs[] = { - [KEMPLD_I2C] = { - .name = "kempld-i2c", - }, - [KEMPLD_WDT] = { - .name = "kempld-wdt", - }, - [KEMPLD_GPIO] = { - .name = "kempld-gpio", - }, - [KEMPLD_UART] = { - .name = "kempld-uart", - }, +static const char *kempld_devs[] = { + [KEMPLD_I2C] = "kempld-i2c", + [KEMPLD_WDT] = "kempld-wdt", + [KEMPLD_GPIO] = "kempld-gpio", + [KEMPLD_UART] = "kempld-uart", }; #define KEMPLD_MAX_DEVS ARRAY_SIZE(kempld_devs) static int kempld_register_cells_generic(struct kempld_device_data *pld) { - struct mfd_cell devs[KEMPLD_MAX_DEVS]; + struct mfd_cell devs[KEMPLD_MAX_DEVS] = {}; int i = 0; if (pld->feature_mask & KEMPLD_FEATURE_BIT_I2C) - devs[i++] = kempld_devs[KEMPLD_I2C]; + devs[i++].name = kempld_devs[KEMPLD_I2C]; if (pld->feature_mask & KEMPLD_FEATURE_BIT_WATCHDOG) - devs[i++] = kempld_devs[KEMPLD_WDT]; + devs[i++].name = kempld_devs[KEMPLD_WDT]; if (pld->feature_mask & KEMPLD_FEATURE_BIT_GPIO) - devs[i++] = kempld_devs[KEMPLD_GPIO]; + devs[i++].name = kempld_devs[KEMPLD_GPIO]; if (pld->feature_mask & KEMPLD_FEATURE_MASK_UART) - devs[i++] = kempld_devs[KEMPLD_UART]; + devs[i++].name = kempld_devs[KEMPLD_UART]; return mfd_add_devices(pld->dev, -1, devs, i, NULL, 0, NULL); } -- 2.27.0 -- Cheers, Stephen Rothwell
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