clkdev: Update clkdev id usage to allow for longer names

clkdev DEV ID information is limited to an array of 20 bytes
(MAX_DEV_ID).  It is possible that the ID could be longer than
that.  If so, the lookup will fail because the "real ID" will
not match the copied value.

For instance, generating a device name for the I2C Designware
module using the PCI ID can result in a name of:

i2c_designware.39424

clkdev_create() will store:

i2c_designware.3942

The stored name is one off and will not match correctly during probe.

Increase the size of the ID to allow for a longer name.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Link: https://lore.kernel.org/r/20240223202556.2194021-1-michael.j.ruhl@intel.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

This commit is contained in:

Michael J. Ruhl

2024-02-23 15:25:56 -05:00

committed by

Stephen Boyd

parent 6613476e22

commit 99f4570cfb

1 changed files with 1 additions and 1 deletions

									
										2

drivers/clk/clkdev.c

										View File
									
				@ -144,7 +144,7 @@ void clkdev_add_table(struct clk_lookup *cl, size_t num)

					mutex_unlock(&clocks_mutex);

				}

				#define MAX_DEV_ID	20

				#define MAX_DEV_ID	24

				#define MAX_CON_ID	16

				struct clk_lookup_alloc {

clkdev: Update clkdev id usage to allow for longer names

2 drivers/clk/clkdev.c Unescape Escape View File

2

drivers/clk/clkdev.c

View File