From 5cf2e755be098036a343ebe11a8bc5f8934367d6 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 19 Dec 2019 23:24:47 +0000 Subject: [PATCH] mod_devicetable: fix PHY module format [ Upstream commit d2ed49cf6c13e379c5819aa5ac20e1f9674ebc89 ] When a PHY is probed, if the top bit is set, we end up requesting a module with the string "mdio:-10101110000000100101000101010001" - the top bit is printed to a signed -1 value. This leads to the module not being loaded. Fix the module format string and the macro generating the values for it to ensure that we only print unsigned types and the top bit is always 0/1. We correctly end up with "mdio:10101110000000100101000101010001". Fixes: 8626d3b43280 ("phylib: Support phy module autoloading") Reviewed-by: Andrew Lunn Signed-off-by: Russell King Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- include/linux/mod_devicetable.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index ed84c07f6a510..1abfe37314a07 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -502,9 +502,9 @@ struct platform_device_id { #define MDIO_MODULE_PREFIX "mdio:" -#define MDIO_ID_FMT "%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d" +#define MDIO_ID_FMT "%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u%u" #define MDIO_ID_ARGS(_id) \ - (_id)>>31, ((_id)>>30) & 1, ((_id)>>29) & 1, ((_id)>>28) & 1, \ + ((_id)>>31) & 1, ((_id)>>30) & 1, ((_id)>>29) & 1, ((_id)>>28) & 1, \ ((_id)>>27) & 1, ((_id)>>26) & 1, ((_id)>>25) & 1, ((_id)>>24) & 1, \ ((_id)>>23) & 1, ((_id)>>22) & 1, ((_id)>>21) & 1, ((_id)>>20) & 1, \ ((_id)>>19) & 1, ((_id)>>18) & 1, ((_id)>>17) & 1, ((_id)>>16) & 1, \ -- 2.47.3