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authorMaciej W. Rozycki <macro@orcam.me.uk>2021-03-21 20:55:27 +0100
committerJens Axboe <axboe@kernel.dk>2021-04-06 09:27:30 -0600
commit6ddcec9547f64f01186e76e29d67e193b52ac30f (patch)
tree8118cadec72215fb026e61640a091cf944699b04
parentpata_legacy: Properly document module parameters (diff)
downloadlinux-dev-6ddcec9547f64f01186e76e29d67e193b52ac30f.tar.xz
linux-dev-6ddcec9547f64f01186e76e29d67e193b52ac30f.zip
pata_platform: Document `pio_mask' module parameter
Add MODULE_PARM_DESC documentation and a kernel-parameters.txt entry. Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/alpine.DEB.2.21.2103212023190.21463@angie.orcam.me.uk Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt7
-rw-r--r--drivers/ata/pata_platform.c4
2 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index d159503223b8..011129133b7a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3664,6 +3664,13 @@
By default set to 1 if CONFIG_PATA_WINBOND_VLB_MODULE,
0 otherwise.
+ pata_platform.pio_mask= [HW,LIBATA]
+ Format: <int>
+ Supported PIO mode mask. Set individual bits to allow
+ the use of the respective PIO modes. Bit 0 is for
+ mode 0, bit 1 is for mode 1, and so on. Mode 0 only
+ allowed by default.
+
pause_on_oops=
Halt all CPUs after the first oops has been printed for
the specified number of seconds. This is to be used if
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c
index 5aba691f09af..028329428b75 100644
--- a/drivers/ata/pata_platform.c
+++ b/drivers/ata/pata_platform.c
@@ -24,6 +24,8 @@
#define DRV_VERSION "1.2"
static int pio_mask = 1;
+module_param(pio_mask, int, 0);
+MODULE_PARM_DESC(pio_mask, "PIO modes supported, mode 0 only by default");
/*
* Provide our own set_mode() as we don't want to change anything that has
@@ -233,8 +235,6 @@ static struct platform_driver pata_platform_driver = {
module_platform_driver(pata_platform_driver);
-module_param(pio_mask, int, 0);
-
MODULE_AUTHOR("Paul Mundt");
MODULE_DESCRIPTION("low-level driver for platform device ATA");
MODULE_LICENSE("GPL");