JFFS2: many compile warnings with gcc 2.95 + kernel 2.5

I observe the following warnings when compiling JFFS2 in 2.5.74-mm2 (but this is not limited to -mm) with gcc 2.95:

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...
CC fs/jffs2/read.o
fs/jffs2/read.c: In function `jffs2_read_dnode':
fs/jffs2/read.c:43: warning: unknown conversion type character z' in format fs/jffs2/read.c:43: warning: unknown conversion type character z' in format fs/jffs2/read.c:43: warning: too many arguments for format
CC fs/jffs2/nodemgmt.o
fs/jffs2/nodemgmt.c: In function `jffs2_mark_node_obsolete':
fs/jffs2/nodemgmt.c:533: warning: unknown conversion type character z' in format fs/jffs2/nodemgmt.c:533: warning: too many arguments for format fs/jffs2/nodemgmt.c:552: warning: unknown conversion type character z' in format fs/jffs2/nodemgmt.c:552: warning: too many arguments for format
CC fs/jffs2/readinode.o
fs/jffs2/readinode.c: In function `jffs2_do_read_inode_internal':
fs/jffs2/readinode.c:516: warning: unknown conversion type character z' in format fs/jffs2/readinode.c:516: warning: unknown conversion type character z' in format fs/jffs2/readinode.c:516: warning: too many arguments for format
CC fs/jffs2/write.o
fs/jffs2/write.c: In function `jffs2_write_dnode':
fs/jffs2/write.c:112: warning: unknown conversion type character z' in format fs/jffs2/write.c:112: warning: too many arguments for format fs/jffs2/write.c:140: warning: unknown conversion type character z' in format fs/jffs2/write.c:140: warning: unknown conversion type character z' in format fs/jffs2/write.c:140: warning: too many arguments for format fs/jffs2/write.c: In function jffs2_write_dirent':
fs/jffs2/write.c:245: warning: unknown conversion type character z' in format fs/jffs2/write.c:245: warning: unknown conversion type character z' in format fs/jffs2/write.c:245: warning: too many arguments for format
CC fs/jffs2/scan.o
CC fs/jffs2/gc.o
fs/jffs2/gc.c: In function `jffs2_garbage_collect_pristine':
fs/jffs2/gc.c:585: warning: unknown conversion type character z' in format fs/jffs2/gc.c:585: warning: too many arguments for format fs/jffs2/gc.c: In function jffs2_garbage_collect_metadata':
fs/jffs2/gc.c:661: warning: unknown conversion type character z' in format fs/jffs2/gc.c:661: warning: too many arguments for format fs/jffs2/gc.c: In function jffs2_garbage_collect_dirent':
fs/jffs2/gc.c:728: warning: unknown conversion type character z' in format fs/jffs2/gc.c:728: warning: too many arguments for format fs/jffs2/gc.c: In function jffs2_garbage_collect_deletion_dirent':
fs/jffs2/gc.c:786: warning: unknown conversion type character z' in format fs/jffs2/gc.c:786: warning: unknown conversion type character z' in format fs/jffs2/gc.c:786: warning: too many arguments for format fs/jffs2/gc.c:803: warning: unknown conversion type character z' in format fs/jffs2/gc.c:803: warning: unknown conversion type character z' in format fs/jffs2/gc.c:803: warning: too many arguments for format fs/jffs2/gc.c:831: warning: unknown conversion type character z' in format fs/jffs2/gc.c:831: warning: too many arguments for format fs/jffs2/gc.c: In function jffs2_garbage_collect_hole':
fs/jffs2/gc.c:893: warning: unknown conversion type character z' in format fs/jffs2/gc.c:893: warning: too many arguments for format fs/jffs2/gc.c:905: warning: unknown conversion type character z' in format fs/jffs2/gc.c:905: warning: too many arguments for format fs/jffs2/gc.c:951: warning: unknown conversion type character z' in format fs/jffs2/gc.c:951: warning: too many arguments for format fs/jffs2/gc.c: In function jffs2_garbage_collect_dnode':
fs/jffs2/gc.c:1080: warning: unknown conversion type character `z' in format fs/jffs2/gc.c:1080: warning: too many arguments for format

  CC      fs/jffs2/symlink.o
  CC      fs/jffs2/build.o
  CC      fs/jffs2/erase.o

fs/jffs2/erase.c: In function `jffs2_mark_erased_block':
fs/jffs2/erase.c:320: warning: unknown conversion type character z' in format fs/jffs2/erase.c:320: warning: too many arguments for format fs/jffs2/erase.c:382: warning: unknown conversion type character z' in format fs/jffs2/erase.c:382: warning: too many arguments for format

  CC      fs/jffs2/background.o
  CC      fs/jffs2/fs.o
  CC      fs/jffs2/writev.o
  CC      fs/jffs2/wbuf.o

fs/jffs2/wbuf.c: In function `jffs2_flush_wbuf':
fs/jffs2/wbuf.c:189: warning: unknown conversion type character z' in format fs/jffs2/wbuf.c:189: warning: too many arguments for format fs/jffs2/wbuf.c: In function jffs2_flash_read':
fs/jffs2/wbuf.c:476: warning: unknown conversion type character `z' in format fs/jffs2/wbuf.c:476: warning: long long unsigned int format, different type arg (arg 2) fs/jffs2/wbuf.c:476: warning: too many arguments for format
...

<-- snip -->

cu
Adrian

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

Switching to %Z will fix that up.

Please don't.

If you really can't ignore the cosmetic warnings, then either use a C99-compliant compiler or remove the printf attribute from printk's declaration in linux/kernel.h.

dwmw2

We work around gcc problems all the time. It is called "being practical".

It's purely cosmetic and ignoring the warnings is a perfectly sufficient workaround. As is removing the attribute from the declaration. Please don't change the code.

dwmw2