https://github.com/torvalds/linux
Revision 7afa81c55fca0cad589722cb4bce698b4803b0e1 authored by Nathan Chancellor on 10 January 2019, 05:41:08 UTC, committed by David S. Miller on 19 January 2019, 18:01:03 UTC
A recent commit in Clang expanded the -Wstring-plus-int warning, showing
some odd behavior in this file.

drivers/isdn/hardware/avm/b1.c:426:30: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
                cinfo->version[j] = "\0\0" + 1;
                                    ~~~~~~~^~~
drivers/isdn/hardware/avm/b1.c:426:30: note: use array indexing to silence this warning
                cinfo->version[j] = "\0\0" + 1;
                                           ^
                                    &      [  ]
1 warning generated.

This is equivalent to just "\0". Nick pointed out that it is smarter to
use "" instead of "\0" because "" is used elsewhere in the kernel and
can be deduplicated at the linking stage.

Link: https://github.com/ClangBuiltLinux/linux/issues/309
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent 8a7fa0c
History
Tip revision: 7afa81c55fca0cad589722cb4bce698b4803b0e1 authored by Nathan Chancellor on 10 January 2019, 05:41:08 UTC
isdn: avm: Fix string plus integer warning from Clang
Tip revision: 7afa81c
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