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regulator: virtual: warn against production use 

This driver is only meant for debugging and testing.  Currently, it's
not possible to use it without patching the kernel since it requires
platform data, but we'll be adding devicetree support, so add a loud
warning to make it clear that it's still only meant for debugging and
testing.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Link: https://lore.kernel.org/r/20220301111831.3742383-3-vincent.whitchurch@axis.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vincent Whitchurch 2022-03-01 12:18:30 +01:00 committed by Mark Brown
parent 75c3543e39
commit d2fb5487ec
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1 changed files with 13 additions and 0 deletions
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13
drivers/regulator/virtual.c
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@ -285,8 +285,21 @@ static int regulator_virtual_probe(struct platform_device *pdev)
{ {
char *reg_id = dev_get_platdata(&pdev->dev); char *reg_id = dev_get_platdata(&pdev->dev);
struct virtual_consumer_data *drvdata; struct virtual_consumer_data *drvdata;
static bool warned;
int ret; int ret;
if (!warned) {
warned = true;
pr_warn("**********************************************************\n");
pr_warn("** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **\n");
pr_warn("** **\n");
pr_warn("** regulator-virtual-consumer is only for testing and **\n");
pr_warn("** debugging. Do not use it in a production kernel. **\n");
pr_warn("** **\n");
pr_warn("** NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE NOTICE **\n");
pr_warn("**********************************************************\n");
}
drvdata = devm_kzalloc(&pdev->dev, sizeof(struct virtual_consumer_data), drvdata = devm_kzalloc(&pdev->dev, sizeof(struct virtual_consumer_data),
GFP_KERNEL); GFP_KERNEL);
if (drvdata == NULL) if (drvdata == NULL)