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[84.115.213.103]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a6fcf560d82sm10922666b.172.2024.06.20.14.22.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Jun 2024 14:22:56 -0700 (PDT) From: Javier Carrasco Date: Thu, 20 Jun 2024 23:22:33 +0200 Subject: [PATCH 1/2] mfd: omap-usb-tll: annotate struct usbtll_omap with __counted_by Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240620-omap-usb-tll-counted_by-v1-1-77797834bb9a@gmail.com> References: <20240620-omap-usb-tll-counted_by-v1-0-77797834bb9a@gmail.com> In-Reply-To: <20240620-omap-usb-tll-counted_by-v1-0-77797834bb9a@gmail.com> To: Tony Lindgren , Lee Jones , Kees Cook , "Gustavo A. R. Silva" Cc: linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, Javier Carrasco X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1718918573; l=894; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=lIk21poydkHZA9G6tN8B5DcddOq3+4kRdZcXWZ3eiDw=; b=OSYqIWUNEtCTr93tYWr99r1gbCF+xJchXhwy2mfzRxuz1aEP4QRMX8dMQ6kZdSzbRg3pQhOY6 8eNfezEiTx4A3X4pljDQBN4SfsYZr+Nk2lsBMFTVndf+JUSeCeOl+0y X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= Use the __counted_by compiler attribute for the "struct clk *ch_clk[]" flexible array member to improve the results of array bound sanitizers. The comments for the variables are no longer needed as it is now clear what is what. Signed-off-by: Javier Carrasco --- drivers/mfd/omap-usb-tll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c index b6303ddb013b..a091e5b0f21d 100644 --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -98,8 +98,8 @@ struct usbtll_omap { void __iomem *base; - int nch; /* num. of channels */ - struct clk *ch_clk[]; /* must be the last member */ + int nch; + struct clk *ch_clk[] __counted_by(nch); }; /*-------------------------------------------------------------------------*/