kdb: address -Wformat-security warnings
When -Wformat-security is not disabled, using a string pointer
as a format causes a warning:
kernel/debug/kdb/kdb_io.c: In function 'kdb_read':
kernel/debug/kdb/kdb_io.c:365:36: error: format not a string literal and no format arguments [-Werror=format-security]
365 | kdb_printf(kdb_prompt_str);
| ^~~~~~~~~~~~~~
kernel/debug/kdb/kdb_io.c: In function 'kdb_getstr':
kernel/debug/kdb/kdb_io.c:456:20: error: format not a string literal and no format arguments [-Werror=format-security]
456 | kdb_printf(kdb_prompt_str);
| ^~~~~~~~~~~~~~
Use an explcit "%s" format instead.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 5d5314d679
("kdb: core for kgdb back end (1 of 2)")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20240528121154.3662553-1-arnd@kernel.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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@ -362,7 +362,7 @@ poll_again:
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if (i >= dtab_count)
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kdb_printf("...");
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kdb_printf("\n");
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kdb_printf(kdb_prompt_str);
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kdb_printf("%s", kdb_prompt_str);
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kdb_printf("%s", buffer);
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if (cp != lastchar)
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kdb_position_cursor(kdb_prompt_str, buffer, cp);
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@ -453,7 +453,7 @@ char *kdb_getstr(char *buffer, size_t bufsize, const char *prompt)
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{
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if (prompt && kdb_prompt_str != prompt)
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strscpy(kdb_prompt_str, prompt, CMD_BUFLEN);
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kdb_printf(kdb_prompt_str);
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kdb_printf("%s", kdb_prompt_str);
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kdb_nextline = 1; /* Prompt and input resets line number */
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return kdb_read(buffer, bufsize);
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}
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