On Thu, Jun 13, 2024 at 01:31:38PM +0200, Greg Kroah-Hartman wrote: > This is the start of the stable review cycle for the 5.4.278 release. > There are 202 patches in this series, all will be posted as a response > to this one. If anyone has any issues with these being applied, please > let me know. > > Responses should be made by Sat, 15 Jun 2024 11:31:50 +0000. > Anything received after that time might be too late. > net/nfc/nci/core.c:1455:15: error: mixing declarations and code is incompatible with standards before C99 [-Werror,-Wdeclaration-after-statement] 1455 | unsigned int hdr_size = NCI_CTRL_HDR_SIZE; Maybe enable C99 on older kernel branches ? The code is +static bool nci_valid_size(struct sk_buff *skb) +{ + BUILD_BUG_ON(NCI_CTRL_HDR_SIZE != NCI_DATA_HDR_SIZE); + unsigned int hdr_size = NCI_CTRL_HDR_SIZE; Swapping those two lines would be another possible fix. Guenter