Hi Sudip,
On Thu, Aug 11, 2022 at 08:36:24AM +0100, Sudip Mukherjee (Codethink) wrote:
> Hi All,
>
> The latest mainline kernel branch fails to build for arm64 allmodconfig
> with clang. The errors are:
>
> sound/soc/sof/ipc3-topology.c:2343:4: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
> ^~~~~~~~~~~~~
> ./include/linux/dev_printk.h:150:67: note: expanded from macro 'dev_info'
> dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
> ~~~ ^~~~~~~~~~~
> ./include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
> _p_func(dev, fmt, ##__VA_ARGS__); \
> ~~~ ^~~~~~~~~~~
> ./include/uapi/sound/sof/abi.h:30:23: note: expanded from macro 'SOF_ABI_MAJOR'
> #define SOF_ABI_MAJOR 3
> ^
> sound/soc/sof/ipc3-topology.c:2343:19: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
> ^~~~~~~~~~~~~
> ./include/linux/dev_printk.h:150:67: note: expanded from macro 'dev_info'
> dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
> ~~~ ^~~~~~~~~~~
> ./include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
> _p_func(dev, fmt, ##__VA_ARGS__); \
> ~~~ ^~~~~~~~~~~
> ./include/uapi/sound/sof/abi.h:31:23: note: expanded from macro 'SOF_ABI_MINOR'
> #define SOF_ABI_MINOR 23
> ^~
> sound/soc/sof/ipc3-topology.c:2343:34: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
> ^~~~~~~~~~~~~
> ./include/linux/dev_printk.h:150:67: note: expanded from macro 'dev_info'
> dev_printk_index_wrap(_dev_info, KERN_INFO, dev, dev_fmt(fmt), ##__VA_ARGS__)
> ~~~ ^~~~~~~~~~~
> ./include/linux/dev_printk.h:110:23: note: expanded from macro 'dev_printk_index_wrap'
> _p_func(dev, fmt, ##__VA_ARGS__); \
> ~~~ ^~~~~~~~~~~
> ./include/uapi/sound/sof/abi.h:32:23: note: expanded from macro 'SOF_ABI_PATCH'
> #define SOF_ABI_PATCH 0
> ^
> 3 errors generated.
>
> drivers/ntb/hw/idt/ntb_hw_idt.c:2409:28: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> "\t%hhu-%hhu.\t", idx, idx + cnt - 1);
> ~~~~ ^~~~~~~~~~~~~
> %d
> drivers/ntb/hw/idt/ntb_hw_idt.c:2438:29: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> "\t%hhu-%hhu.\t", idx, idx + cnt - 1);
> ~~~~ ^~~~~~~~~~~~~
> %d
> drivers/ntb/hw/idt/ntb_hw_idt.c:2484:15: error: format specifies type 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
> idx, data, src, ndev->peers[src].port);
> ^~~
> 3 errors generated.
>
> For both, git bisect points to 0af5cb349a2c ("Merge tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild")
Right, these are exposed by commit 258fafcd0683 ("Makefile.extrawarn:
re-enable -Wformat for clang"). They both have fixes in -next so I am
hoping they will be in Linus's tree soon:
b7bf23c0865f ("ASoC: SOF: ipc3-topology: Fix clang -Wformat warning")
a44252d5c3bb ("ntb: idt: fix clang -Wformat warnings")
Cheers,
Nathan
