tree 836acb55edd81cb1dccba70899a2de594237d541
parent 4f42f234ad1f78f8b2cec2a2c1560df8789d2492
author Sami Tolvanen <samitolvanen@google.com> 1540332935 -0700
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1549997092 +0100

modpost: validate symbol names also in find_elf_symbol

[ Upstream commit 5818c683a619c534c113e1f66d24f636defc29bc ]

If an ARM mapping symbol shares an address with a valid symbol,
find_elf_symbol can currently return the mapping symbol instead, as the
symbol is not validated. This can result in confusing warnings:

  WARNING: vmlinux.o(.text+0x18f4028): Section mismatch in reference
  from the function set_reset_devices() to the variable .init.text:$x.0

This change adds a call to is_valid_name to find_elf_symbol, similarly
to how it's already used in find_elf_symbol2.

Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>